Datasets
Search for specific datasets or use filters to explore our data.
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Multi-Watershed Nutrient Study
Ministry: Environment, Conservation and Parks
The Multi-Watershed Nutrient Study collected stream water samples from 11 small agricultural watersheds between 2014 and 2020. Samples were collected during flow events like...Resource formats:
- ZIP
- CSV
- SHP
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Petroleum Crown Lake Grid
Ministry: Natural Resources and Forestry
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...Resource formats:
- WEB
- DOCX
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Official airports
Ministry: Natural Resources and Forestry
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...Resource formats:
- WEB
- DOCX
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Ontario Elevation Data Index
Ministry: Natural Resources and Forestry
Elevation data is the representation of the height of the ground at a location on earth. This data allows users to discover the extent of elevation products, and the metadata...Resource formats:
- WEB
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Provincial Watersheds, Historical
Ministry: Natural Resources and Forestry
Note: This data has been replaced by the Ontario Watershed Boundaries (OWB). We are no longer updating this data. It is best suited for historical research and analysis. A...Resource formats:
- ZIP
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2006 Commercial Vehicle Survey: equivalent single axle load
Ministry: Transportation
Equivalent Single Axle Loadings (ESAL) are derived from the axle weight measurements from the 2006 Ontario Commercial Vehicle Survey data. All values are factored up to...Resource formats:
- ZIP
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Oak Ridges Moraine: land use designations
Ministry: Municipal Affairs and Housing
This dataset was created to provide land use information on the Oak Ridges Moraine and is the basis for Ontario Regulation 140/02. The data was digitized at 1:10,000 or better...Resource formats:
- DOCX
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Lake Water Quality at Drinking Water Intakes
Ministry: Environment, Conservation and Parks
This data set includes information on sampling locations, water chemistry and chlorophyll collected at 18 locations in the Great Lakes-St. Lawrence River and 4 locations in Lake...Resource formats:
- XLSX
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Regional Tourism Organizations: geographic boundaries
Ministry: Tourism, Culture and Gaming
Each Regional Tourism Organization is an independent, industry-led and not- for-profit and each provides leadership and coordination to support competitive and sustainable...Resource formats:
- ZIP
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Aerial photography and photogrammetric mapping index
Ministry: Transportation
This index identifies project areas on provincial highways where aerial photography and photogrammetric mapping has been collected.Resource formats:
- ZIP
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Children’s Treatment Centre boundaries
Ministry: Children, Community and Social Services
There are 21 ministry-funded Children's Treatment Centres across Ontario. These centres provide rehabilitation services to children and youth with moderate or severe...Resource formats:
- ZIP
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Border crossings
Ministry: Transportation
Border crossings are a feature included on the Official Road Map of Ontario (ORM) for information purposes to the travelling public. Included are highway-land and ferry...Resource formats:
- DOCX
- ZIP
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Permit to Take Water
Ministry: Environment, Conservation and Parks
Companies or organizations who take over 50,000 litres of water/day from a lake, river, stream or groundwater source, must obtain a Permit to Take Water from the Ministry of the...Resource formats:
- SHP
- XLS
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Industrial Wastewater Discharges
Ministry: Environment, Conservation and Parks
Industrial wastewater monitoring data submitted quarterly to the Ministry of the Environment. This reporting is required by the Effluent Monitoring and Effluent Limits...Resource formats:
- XLS
- XLSX
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Forest Insect Damage Event
Ministry: Natural Resources and Forestry
Shows areas where forest insect pests have damaged or killed trees by defoliation, foliage mining and wood boring. Tree mortality rarely occurs as the result of one year's...Resource formats:
- WEB
- DOCX
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Linear referencing and composite listing - Ontario highways
Ministry: Transportation
This data, also known as the Linear Highway Referencing System (LHRS), is used to locate events along the highway network. Three separate files make up the LHRS dataset: LHRS...Resource formats:
- ZIP
- XLSX
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Environmental Compliance Reports
Ministry: Environment, Conservation and Parks
Every year, the Ministry of the Environment Conservation and Parks publicly releases the Environmental Compliance Report on the Ontario Data Catalogue. In Ontario, all...Resource formats:
- CSV
- XLSX
- ZIP
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Ontario Cage Aquaculture Water and Sediment Quality
Ministry: Environment, Conservation and Parks
This dataset contains measurements of water (chemistry and algal pigments) and sediment (chemistry and size fraction) quality in nearshore areas of Lake Huron surrounding cage...Resource formats:
- CSV
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Ontario’s health region geographic data
Ministry: Health
Geographic information for Ontario Health (OH) Regions, and Home and Community Care Support Services (HCCSS) boundaries. The HCCSS boundary file is maintained by Statistics...Resource formats:
- ZIP
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Tables of Drinking Water Threats
Ministry: Environment, Conservation and Parks
We've made tables that include the 21 drinking water quality threat activities, set out in O. Reg. 287/07, which may pose a risk to a municipal drinking water supply. The...Resource formats:
- XLSX