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143 APIs from Government of Ontario

143 API · Latest update 2026-10-07 · Source open.canada.ca (2026-10-11)

143 matching entries from open.canada.ca (Recently updated, as of 2026-10-11).

143 APIs from Government of Ontario

  1. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Ministry of Natural Resources (MNR) regions were created to help manage ministry programs and resources at a regional level. Extents of the regions were originally compiled by description of: metes an…

    ArcGIS RESTOpen Government Licence – Ontario

  2. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Many geometrical schemes - or map projections - are used to represent the curved surface of the Earth on map sheets. Canada uses the Universal Transverse Mercator (UTM) system. It is called transverse…

    ArcGIS RESTOpen Government Licence – Ontario

  3. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This spatial dataset represents the boundaries of areas designated under the Aggregate Resources Act, R.S.O 1990 where a licence or permit is required for aggregate extraction. Under the Act, all aggr…

    ArcGIS RESTOpen Government Licence – Ontario

  4. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Data show where pathogens - fungal, bacillial or viral - have caused damage by reducing growth rates, tree vigor or have killed trees. Examples of forest diseases include White Pine Blister Rust, Armi…

    ArcGIS RESTOpen Government Licence – Ontario

  5. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset is used for national and coarse-scale provincial reporting such as analyses of climate, demographics and watersheds.

    ArcGIS RESTOpen Government Licence – Ontario

  6. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Zones were created to manage the potential spread of fish pathogens. This product requires the use of geographic information system (GIS) software.

    ArcGIS RESTOpen Government Licence – Ontario

  7. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The Niagara Escarpment Special Policy Area is comprised of the North Aldershot Policy Area and the Waterdown Policy Area. More information

    ArcGIS RESTOpen Government Licence – Ontario

  8. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A building is a structure that has a roof and walls and stands more or less permanently in one place. Symbols are used when buildings and structures are permanent landmarks. Symbolized buildings have…

    ArcGIS RESTOpen Government Licence – Ontario

  9. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Includes: * National Parks * National Marine Conservation Areas * heritage canals * National Wildlife Areas * Other Federal Protected areas This dataset is provided by the federal government, and may…

    ArcGIS RESTOpen Government Licence – Ontario

  10. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset is used to: * assess biodiversity levels * define seed zones * map ecosystem types * set targets for the identification of natural heritage systems

    ArcGIS RESTOpen Government Licence – Ontario

  11. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Watercourses are line features - natural or manmade - that represent the location of flowing surface water. This product requires the use of geographic information system (GIS) software.

    ArcGIS RESTOpen Government Licence – Ontario

  12. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This data set shows utility points that provide services for: * power * water * communications * heating fuel They include: * fibre optic stations * hydro stations * lock pumping stations This product…

    ArcGIS RESTOpen Government Licence – Ontario

  13. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    These signs serve a variety of purposes ranging from providing general information and safety warnings, to enforcement and land management notices to the general public. Ministry of Natural Resources…

    ArcGIS RESTOpen Government Licence – Ontario

  14. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    ## Get data on areas where outdoor fires are not permitted. This dataset shows areas where outdoor fires are restricted in accordance with the Forest Fires Prevention Act. There are two reasons why a…

    ArcGIS RESTOpen Government Licence – Ontario

  15. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The locations of wells that have been drilled for oil production, gas or salt resources or for underground storage of hydrocarbons. This data can be used for land use and resource management, emergenc…

    ArcGIS RESTOpen Government Licence – Ontario

  16. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The Ontario Vector Topographic Data Cache is a collection of topographic data, that has been preprocessed for fast, seamless display at predefined scales. The topographic data includes constructed and…

    ArcGIS RESTOpen Government Licence – Ontario

  17. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This layer is derived from data provided from Nav Canada. Where possible, it is spatially aligned with Ontario land parcel layers. Data is continually updated. This layer should not be used for naviga…

    ArcGIS RESTOpen Government Licence – Ontario

  18. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Built-Up Areas are man-made land cover features, ranging from small hamlets at rural cross roads to large cities. This product requires the use of geographic information system (GIS) software.

    ArcGIS RESTOpen Government Licence – Ontario

  19. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Bait resources in most of the province are assigned to harvesters through the use of a block system -- 1 harvester per 'bait harvest' area. There are exceptions to the block system (e.g., Lake Erie),…

    ArcGIS RESTOpen Government Licence – Ontario

  20. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Designated gas storage areas are land areas designated by the Ontario Energy Board that contain geological formations used for subsurface storage of natural gas. This product requires the use of geogr…

    ArcGIS RESTOpen Government Licence – Ontario

  21. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The spatial accuracy of the lot fabric for some townships has been improved through the Ontario Parcel, Township Realignment and Township Improvement projects. Improvements to the fabric may include:…

    ArcGIS RESTOpen Government Licence – Ontario

  22. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Information about roads under Ministry of Natural Resources (MNR) jurisdiction may fall within the responsibility of several different ministry branches and including: * Forests Division * Parks, Land…

    ArcGIS RESTOpen Government Licence – Ontario

  23. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset is often used by users without access to the Provincial Forest Resource Inventory data, which contains information like municipalities and non-profit groups not affiliated with monitoring…

    ArcGIS RESTOpen Government Licence – Ontario

  24. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset represents unique Ontario waterbody location identification information including: * unique identifiers * geographic coordinates * geographic township * municipality * waterbody names, of…

    ArcGIS RESTOpen Government Licence – Ontario

  25. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    ## Get data on boundaries of local climatic areas used for forest fire weather forecasting. This dataset shows the boundaries of administrative areas used for forest fire weather forecasting. North of…

    ArcGIS RESTOpen Government Licence – Ontario

  26. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A bear management area is a polygon feature that identifies a ministry-regulated boundary used to manage, administer and enforce the licensed black bear hunting tourism program.

    ArcGIS RESTOpen Government Licence – Ontario

  27. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Site Regions and Site Districts of Ontario represent an early Ecological Land Classification (ELC) system originally developed by Angus Hills. This dataset was revised by the ELC Working Group in 2000…

    ArcGIS RESTOpen Government Licence – Ontario

  28. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset provides various Ministry of Natural Resources and Forestry business areas with fundamental forest inventory information needed to meet their program mandates.

    ArcGIS RESTOpen Government Licence – Ontario

  29. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Bathymetry is the measurement of water depth in lakes. From the 1940s to the 1990s, the Ministry of Natural Resources and Forestry produced bathymetry maps for over 11,000 lakes across Ontario. The da…

    ArcGIS RESTOpen Government Licence – Ontario

  30. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Most of these events involved community evacuations, significant structural loss and/or involvement of a Ministry of Natural Resources (MNR) Emergency Response Officer. Events include those assigned t…

    ArcGIS RESTOpen Government Licence – Ontario

  31. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Fire management agreements divide land into 4 areas: * Crown Protection Area (CPA): The Crown is responsible for responding to all fires in the CPA * Municipal Protection Area (MPA): The municipality…

    ArcGIS RESTOpen Government Licence – Ontario

  32. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This provincial layer shows the site locations for waterpower Applicants of Record seeking regulatory approvals for renewable energy projects on Crown land. The ministry will not accept another applic…

    ArcGIS RESTOpen Government Licence – Ontario

  33. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Waterbody types include: * Lake * River * Canal * Reservoir * Kettle lake * Pond * Beaver Pond * Ocean This product requires the use of geographic information system (GIS) software.

    ArcGIS RESTOpen Government Licence – Ontario

  34. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Fire perimeters for this year's forest fires in Ontario. Fire perimeters are illustrations only and may not be exact in relation to actual physical locations. The Ontario Ministry of Natural Resources…

    ArcGIS RESTOpen Government Licence – Ontario

  35. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Ontario is divided into 4 Bait Management Zones (BMZs) that regulate the movement, possession and use of baitfish and leeches: * Southern BMZ * Central BMZ * Northeastern BMZ * Northwestern BMZ In por…

    ArcGIS RESTOpen Government Licence – Ontario

  36. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The dataset identifies the location and types of Federal Land. These polygon boundaries should be verified using Federal Crown Land Survey Records and/or title searched at the local Land Registry Offi…

    ArcGIS RESTOpen Government Licence – Ontario

  37. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This layer is derived from data provided by Nav Canada. This layer should not be used for navigation purposes. Official GEO title: Airport Other

    ArcGIS RESTOpen Government Licence – Ontario

  38. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Broad management guidance is applied across each Cervid Ecological Zone (CEZ) to help set local population and habitat objectives. CEZs reflect the overarching cervid management intent at the landscap…

    ArcGIS RESTOpen Government Licence – Ontario

  39. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Ministry of Natural Resources (MNR) regions are divided into districts - smaller organizational units - to help manage ministry programs and resources. Extents of the districts were originally compile…

    ArcGIS RESTOpen Government Licence – Ontario

  40. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A trapline area is a polygon feature that identifies a ministry-regulated boundary used to administer traplines and fur management programs.

    ArcGIS RESTOpen Government Licence – Ontario

  41. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Historical Oil Fields are subsurface accumulations or 'pools' of crude oil designated as such for the purposes of the Oil, Gas and Salt Resources Act. This product requires the use of geographic infor…

    ArcGIS RESTOpen Government Licence – Ontario

  42. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A feature is a representation of a real world object, such as a lake, stream, dam or rapid. There are three hydrographic feature classes: points, lines and polys. All may impede or be hazardous to wat…

    ArcGIS RESTOpen Government Licence – Ontario

  43. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Examples include: * shoreline access * enhanced shoreline access (with a dock or pier) * boat launches This data was created to be used as part of the Fish ON-Line mapping application.

    ArcGIS RESTOpen Government Licence – Ontario

  44. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Bathymetry line data was collected to assess fish habitat in Ontario. Spot depths (bathymetry points) were used to measure the depth contours, which function like isobars to show lines of constant dep…

    ArcGIS RESTOpen Government Licence – Ontario

  45. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This spatial dataset represents the boundaries of the areas of responsibility for aggregate inspectors working on behalf of the Ministry of Natural Resources and Forestry. In southern Ontario, inspect…

    ArcGIS RESTOpen Government Licence – Ontario

  46. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Get data on Lake Ontario tagged Atlantic salmon recaptures. This dataset represents tagged adult Atlantic salmon that were released and then recaptured by anglers. These fish were used as brood stock…

    ArcGIS RESTOpen Government Licence – Ontario

  47. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset represents the locations of licenced and permitted pits and quarries regulated by the Ministry of Natural Resources and Forestry under the Aggregate Resources Act, R.S.O. 1990. Aggregate…

    ArcGIS RESTOpen Government Licence – Ontario

  48. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Often these parcels were surveyed before township surveys in their area. They may also be supplemental to them (as is the case with some Cadastral Islands). Sometimes these were laid out after a towns…

    ArcGIS RESTOpen Government Licence – Ontario

  49. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This data contains location information for 1 of Ontario’s snow monitoring networks: * Surface Water Monitoring Centre (SWMC) Snow course data is collected by: * conservation authorities * Ontario Pow…

    ArcGIS RESTOpen Government Licence – Ontario

  50. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Many geometrical schemes - or map projections - are used to represent the curved surface of the Earth on map sheets. Canada uses the **Universal Transverse Mercator** (UTM) system. It is called transv…

    ArcGIS RESTOpen Government Licence – Ontario

  51. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This spatial dataset represents the locations of aquatic resource area (ARA) polygon segments derived from corresponding polygon features in the Ontario Hydro Network. ARA polygon segments may represe…

    ArcGIS RESTOpen Government Licence – Ontario

  52. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset contains location information for 2 of Ontario’s snow monitoring networks: * Surface Water Monitoring Centre (SWMC) * Snow Network for Ontario Wildlife (SNOW), administered by the Wildlif…

    ArcGIS RESTOpen Government Licence – Ontario

  53. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This spatial data identifies breeding zones used by forest managers and forest genetic associations to manage provincial forest genetic assets. The data: * shows the boundaries of breeding zones * ide…

    ArcGIS RESTOpen Government Licence – Ontario

  54. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The attribute table included in the dataset provides some limited metadata information that is specific to each lake. This includes the: * survey year * survey method * original map scale This dataset…

    ArcGIS RESTOpen Government Licence – Ontario

  55. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The wildlife values area and site datasets represent the consolidation of 13 wildlife data classes collected by the Ministry of Natural Resources. The data estimates locations used by wildlife for var…

    ArcGIS RESTOpen Government Licence – Ontario

  56. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A Ministry of Natural Resources (MNR) Road Barrier is when access to a road segment or network is restricted or controlled. Road authorities in Ontario have the mandated responsibility to construct ro…

    ArcGIS RESTOpen Government Licence – Ontario

  57. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Identifies First Nation Reserve boundaries defined by the Legal Surveys Division of Natural Resources Canada.

    ArcGIS RESTOpen Government Licence – Ontario

  58. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This provincial layer shows the site locations of onshore wind power Applicants of Record seeking regulatory approvals for renewable energy projects on Crown land. The ministry will not accept another…

    ArcGIS RESTOpen Government Licence – Ontario

  59. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A Fire Disturbance Area represents the mapped exterior perimeter of a forest fire. Mapping is derived from a variety of sources, such as GPS points and digitized paper maps. Prior to 1998, only fires…

    ArcGIS RESTOpen Government Licence – Ontario

  60. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Data has been collected primarily using a depth measurement device, such as an echo-sounder, in combination with a Global Positioning System (GPS) for horizontal positioning. Other survey methods, suc…

    ArcGIS RESTOpen Government Licence – Ontario

  61. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Wildlife Management Units are used for a number of wildlife management purposes, like indicating the areas of Ontario where hunting open seasons and harvest quotas apply. Wildlife Management Unit boun…

    ArcGIS RESTOpen Government Licence – Ontario

  62. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    ##Get data on fire response plan area boundaries and recommended response types for wildfires. This dataset shows the boundaries of fire response plan areas and provides the recommended response type…

    ArcGIS RESTOpen Government Licence – Ontario

  63. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A spot height identifies the elevation (z value) above sea level of natural and man-made geographic features. It includes: * spot heights * vertical control points * water level/lake elevations This p…

    ArcGIS RESTOpen Government Licence – Ontario

  64. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The wildlife values area and site datasets represent the consolidation of 13 wildlife data classes collected by the Ministry of Natural Resources. The data estimates locations used by wildlife for var…

    ArcGIS RESTOpen Government Licence – Ontario

  65. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Data from the former Kemptville, Midhurst and Aylmer Districts were compiled in this dataset to show forest areas on private land, managed by the landowner in cooperation with the Ontario Ministry of…

    ArcGIS RESTOpen Government Licence – Ontario

  66. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A building is a structure that has a roof and walls and stands more or less permanently in one place. Small buildings have only their location recorded. A 'building to scale' is a structure that has o…

    ArcGIS RESTOpen Government Licence – Ontario

  67. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Landform conservation areas represent areas of significant landform features such as: * steep slopes * kames * kettles * ravines * ridges This dataset identifies Category 1 and Category 2 landform con…

    ArcGIS RESTOpen Government Licence – Ontario

  68. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Ontario's Crown forest is divided into geographic planning areas, known as forest management units. Most of these units are managed by individual forest companies under a Sustainable Forest License. A…

    ArcGIS RESTOpen Government Licence – Ontario

  69. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Minor urban center is one of the 7 Niagara Escarpment Plan land use designations. This designation includes rural settlements, villages and hamlets. The boundaries of minor urban centres are defined b…

    ArcGIS RESTOpen Government Licence – Ontario

  70. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Point locations of water and weather monitoring stations used by the Surface Water Monitoring Centre to assess flood and drought conditions across Ontario. Monitoring station types include: * streamfl…

    ArcGIS RESTOpen Government Licence – Ontario

  71. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A feature is a representation of a real world object, such as a lake, stream, dam or rapid. There are three hydrographic feature classes: points, lines and polys. All may impede or be hazardous to wat…

    ArcGIS RESTOpen Government Licence – Ontario

  72. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The outer boundary of the Province of Ontario. Land identifying the extent of the Province of Ontario for mapping purposes. This product requires the use of geographic information system (GIS) softwar…

    ArcGIS RESTOpen Government Licence – Ontario

  73. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Fish stocking data for recreational fishing purposes. Contains: * stocking data for the past 10 years for species where the purpose of the stocking event was to promote recreational fishing. This is a…

    ArcGIS RESTOpen Government Licence – Ontario

  74. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The spatial record for all the province's geographic areas affected by provincial level, area-specific land use policy. This layer may contain geometry from the: * provincial parks-regulated layer * c…

    ArcGIS RESTOpen Government Licence – Ontario

  75. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The Fish Pathogen Boundary Segment layer forms the boundary of the Fish Pathogen Management Zones and is made up of segments that were taken from the Ontario Road Network. This data class was created…

    ArcGIS RESTOpen Government Licence – Ontario

  76. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Towers -- structures or buildings that are typically higher than their diameter and high relative to their surroundings -- are shown in this data set. They include: * communication towers * fire tower…

    ArcGIS RESTOpen Government Licence – Ontario

  77. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Crown Game Preserves were established to prohibit or regulate the hunting and trapping of wildlife in specific areas to restore local populations.

    ArcGIS RESTOpen Government Licence – Ontario

  78. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Prior to January 1, 2008, fishing divisions were administrative units to manage, monitor, assess and regulate recreational fisheries. Each zone was based on angler usage and ecological/geographic patt…

    ArcGIS RESTOpen Government Licence – Ontario

  79. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The Ontario Dam Inventory (ODI) is an inventory of medium and large dams throughout Ontario. It uses a point-based system (x, y location) to identify each dam location. The ODI does not contain: * sma…

    ArcGIS RESTOpen Government Licence – Ontario

  80. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Many geometrical schemes - or map projections - are used to represent the curved surface of the Earth on map sheets. Canada uses the **Universal Transverse Mercator** (UTM) system. It is called transv…

    ArcGIS RESTOpen Government Licence – Ontario

  81. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    An abiotic damage event is a non-biological event -- such as wind or an ice storm -- that has damaged areas of forested land. Abiotic damage event information is mainly used to: * generate summary map…

    ArcGIS RESTOpen Government Licence – Ontario

  82. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Data set contains geographical referencing information like: * type of feature or place * location coordinates * geographic township * municipal and map references Also contains places and background…

    ArcGIS RESTOpen Government Licence – Ontario

  83. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The fish activity area data represents the consolidation of two fish data classes collected by the Ministry of Natural Resources. The data estimates locations used by fish for activities such as spawn…

    ArcGIS RESTOpen Government Licence – Ontario

  84. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The ORN is a provincewide geographic database of over 250,000 kilometres of municipal roads, provincial highways, and resource and recreational roads. The ORN is the authoritative source of roads data…

    ArcGIS RESTOpen Government Licence – Ontario

  85. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This spatial dataset represents the locations of aquatic resource area (ARA) line segments derived from corresponding line features in the Ontario Hydro Network. ARA line segments may represent a port…

    ArcGIS RESTOpen Government Licence – Ontario

  86. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This new data class brings over data from the Waste Management Information System (WMIS), which is a Microsoft Access based database used by the Ministry of Natural Resources (MNR) to track Waste Mana…

    ArcGIS RESTOpen Government Licence – Ontario

  87. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Miscellaneous events are often the result of the cumulative impact of a combination of abiotic, insect and disease agents or events. For example, Aspen decline where repeated infestations of Forest Te…

    ArcGIS RESTOpen Government Licence – Ontario

  88. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Wetlands are lands that are seasonally or permanently flooded by shallow water. They also include lands where the water table is close to the surface. The wetland polygons are managed independently fr…

    ArcGIS RESTOpen Government Licence – Ontario

  89. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset shows the boundaries of systems of natural heritage features and areas, lands and waters that support connectivity and have significant ecological value. It includes areas defined in prov…

    ArcGIS RESTOpen Government Licence – Ontario

  90. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The Ontario Hydro Network (OHN) is a provincial medium scale originating from data with regional scales of 1: 10,000 in Southern Ontario, 1: 20,000 in Northern Ontario and 1: 50,000 in the Far North.…

    ArcGIS RESTOpen Government Licence – Ontario

  91. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This information is used to manage oil and gas rights on offshore Crown lands in Ontario. A grid system of blocks and tracts is used to divide the area. 1 block = 5 minute longitude by 5 minute latitu…

    ArcGIS RESTOpen Government Licence – Ontario

  92. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset shows the locations of ignition points for forest fires less than 40 hectares in size. Fires that grow larger than 40 hectares are mapped in the Fire Disturbance Area dataset. The Forest…

    ArcGIS RESTOpen Government Licence – Ontario

  93. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This data is used for referencing spatial and tabular Forest Resource Processing Facility information. Each facility has one or more processing sites, each dedicated to processing resources for a spec…

    ArcGIS RESTOpen Government Licence – Ontario

  94. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset is used is used to determine the significance or status of wetland classes and certain other natural heritage features. It is also used to set targets for Wilderness Class Provincial park…

    ArcGIS RESTOpen Government Licence – Ontario

  95. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    The Guide to Crown Land Use Planning Atlas (CLUPA) is the authoritative source for information on overlays. The dataset maintains a spatial record for all geographic areas of Ontario affected by the d…

    ArcGIS RESTOpen Government Licence – Ontario

  96. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Get data on fish stocking records from 1900 - 2012. This dataset is the most complete collection of historical fish stocking records available for the time period 1900 to 2012. It includes: * data sou…

    ArcGIS RESTOpen Government Licence – Ontario

  97. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    This dataset shows the boundaries of the province's six fire management zones that existed prior to 2014 in which most forest fires received the same type of response. These management zones were base…

    ArcGIS RESTOpen Government Licence – Ontario

  98. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Depicts the internal boundaries of the Niagara Escarpment Plan area. The 7 land use designations are: * escarpment natural area * escarpment protection area * escarpment rural area * minor urban centr…

    ArcGIS RESTOpen Government Licence – Ontario

  99. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    A Township is a land subdivision in Ontario. This information was captured through the Ontario Base Mapping Program, is maintained by the Ministry of Natural Resources and distributed through Geospati…

    ArcGIS RESTOpen Government Licence – Ontario

  100. Government of Ontario · Provincial · Economics and industry · Updated 2026-10-07

    Includes: * contour land * contour land approximate * contour land auxiliary/interpolated * contour land depression In southern Ontario the contour interval is 5 meters. In the near north the contour…

    ArcGIS RESTOpen Government Licence – Ontario

Top 100 by the default sort. To see all 143, filter this list in the search

GovAPI Atlas is an index of the APIs and web services that national government open-data portals publish. This edition's list was read from open.canada.ca on 2026-10-11 and is refreshed every week. GovAPI Atlas does not host the APIs; you apply for and call them on the portal itself.

What is included

Records on open.canada.ca with at least one resource in an API or web service format (ESRI REST, WMS, WFS, WCS, WMTS), plus the records in the portal's API collection. Titles and descriptions are the English versions.

Source

Contains information licensed under the Open Government Licence – Canada. Source: open.canada.ca.