Datasets
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St. Lawrence Basin watersheds
Ministry: Natural Resources and Forestry
Data includes: The Lake Superior watershed The Lake Huron watershed The Lake Erie watershed The Lake Ontario watershed The St. Lawrence River watershedResource formats:
- WEB
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Ontario Watershed Information Tool (OWIT)
Ministry: Natural Resources and Forestry
The Ontario Watershed Information Tool (OWIT) is used to calculate information about Ontario’s watersheds. Watersheds are areas of land where surface water converges to a single...Resource formats:
- WEB
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Ontario Hydro Network - Hydrographic Line
Ministry: Natural Resources and Forestry
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...Resource formats:
- WEB
- DOCX
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Bathymetry index
Ministry: Natural Resources and Forestry
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...Resource formats:
- WEB
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Prescribed Substances under the Toxics Reduction Act
Ministry: Environment, Conservation and Parks
The Toxics Reduction Act aims to protect the health of people and the environment by reducing the use and emission of the toxic substances prescribed in this list. The Toxics...Resource formats:
- XLS
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Ministry of Natural Resources District
Ministry: Natural Resources and Forestry
Ministry of Natural Resources (MNR) regions are divided into districts - smaller organizational units - to help manage ministry programs and resources. Extents of the districts...Resource formats:
- WEB
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Ontario Hydro Network (OHN) - Small scale cartographic products
Ministry: Natural Resources and Forestry
This Ontario Hydro Network (OHN) small scale dataset is intended for cartographic and web mapping display purposes, not for analytical work. Small scale waterbody, watercourse...Resource formats:
- WEB
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Crown Game Preserves
Ministry: Natural Resources and Forestry
Crown Game Preserves were established to prohibit or regulate the hunting and trapping of wildlife in specific areas to restore local populations.Resource formats:
- WEB
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Baseline hydrology statistics
Ministry: Natural Resources and Forestry
The Baseline hydrology statistics (stream flow regime) in the Southwestern Hudson Bay and Nelson River watershed systems were produced for the Water Survey of Canada's HYDAT...Resource formats:
- WEB
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Ministry of Natural Resources Region
Ministry: Natural Resources and Forestry
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...Resource formats:
- WEB
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Miscellaneous Point
Ministry: Natural Resources and Forestry
This dataset contains miscellaneous point features including: mine head frames cadastral iron bar (a type of survey monument) historical monuments horizontal control monuments...Resource formats:
- WEB
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Lake Ontario Downstream Tributary Water Chemistry Monitoring
Ministry: Environment, Conservation and Parks
From 2018 to 2023, ministry staff collected water quality samples year-round from seven rivers that flow into Lake Ontario in the Greater Toronto Area. They did this to...Resource formats:
- XLSX
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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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Forest Fire Danger Rating
Ministry: Natural Resources and Forestry
This Forest Fire Danger Rating is a general depiction of the forest fire danger ratings for various regions of Ontario. It is designed only to show the overall danger in large...Resource formats:
- WEB
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In-year Fire Perimeters
Ministry: Natural Resources and Forestry
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...Resource formats:
- WEB
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Ontario moose aerial inventory plot grid
Ministry: Natural Resources and Forestry
This spatial polygon layer contains all the standardized plots used for the Ministry of Natural Resources’ moose aerial inventory program. The geographic area includes Central...Resource formats:
- WEB
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Crown land: MNR non-freehold dispositions
Ministry: Natural Resources and Forestry
This Crown land data set includes: leases licenses of occupation land use permits beach management agreements easements These are lands with tenanted dispositions by the Crown...Resource formats:
- WEB