Get mapping data related to the Northwest Greater Toronto Area Transmission Corridor Identification Study. In June 2019, the Ministry of Energy, Northern Development and Mines along with Ontario’s electricity system planner, the Independent Electricity System Operator, launched the Northwest GTA Transmission Corridor Identification Study to identify an appropriate corridor of land for use by future power lines if and when the need arises.

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 should be used for discovery of Bathymetry data. It provides no bathymetric information, but allows users to discover where bathymetry data exists and in what format. Related datasets: * [Ontario waterbody location identifer](https://data.ontario.ca/dataset/ontario-waterbody-location-identifier)

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, inspectors may use various criteria to determine their area of responsibility, including: * geographic township boundaries * the number of licences and permits in a given area * geographic size In northern Ontario, areas of responsibility generally follow MNRF district boundaries. Use our interactive [Pits and Quarries map](https://www.ontario.ca/page/find-pits-and-quarries) to learn more about active aggregate sites and designated areas.

Get data on the locations of sample sites for the Guide Effectiveness Monitoring Program This dataset shows the locations of sample sites for the Guide Effectiveness Monitoring (GEM) Program. The GEM Program evalutes the effectiveness of forest management guides on songbird occupancy rate and community structure. Learn about the procedures and protocols used for this study in the [Centre for Northern Forest Ecosystem Research Technical Report 004: Effectiveness Monitoring of Forest Management Guides](http://www.ontla.on.ca/library/repository/mon/25011/309546.pdf).

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

A source protection area (SPA) is an area of land and water governed by a Source Protection Authority, an agency, person or body. This dataset defines the geographic boundaries where each SPA's terms of reference, assessment reports and source protection plans must be developed. *[SPA]: source protection area

Get data on the results of a community led planning process to sustain the natural environment for the Kawartha Lakes region. This dataset represents the results of a community led planning process to sustain the natural environment across the landscape. A collaborative team of individuals representing governments, stewardship councils, conservation organizations, local industry, private landowners and First Nation communities worked together to identify and map natural heritage features and the connections between them. The data package includes: * spatial data * project reports * presentation materials The data has been made available to inform and support: * land use planning * resource management * stewardship and restoration projects * priorities for conservation land acquisitions * priorities for inventory programs and research Please visit [http://www.kawarthasnaturally.ca/](http://www.kawarthasnaturally.ca/) for more information about this project.

The Ministry of Natural Resources defines ecological units on the basis of bedrock, climate (temperature, precipitation), physiography (soils, slope, aspect) and corresponding vegetation. This enhances their compatibility with national and continental classification systems. The ecological land classification (ELC) of Ontario is used for descriptive, planning, and resource management purposes. The upper levels in its hierarchy may be relevant for provincial and municipal land-use planning initiatives. The lower (finer-scale) levels of the hierarchy are most useful for detailed resource management prescriptions and other local and site planning applications. This packaged dataset is classified into 3 hierarchical categories: * Ecozone: used for national and coarse-scale provincial reporting such as analyses of climate, demographics and watersheds * Ecoregion: used for determining the significance or status of wetland classes and certain other natural heritage features (e.g., old growth forest), setting targets for Wilderness Class Provincial parks, State of the Forest reporting and studying natural disturbance regimes * Ecodistrict used for assessing biodiversity levels, defining seed zones, mapping ecosystem types and setting targets for the identification of natural heritage systems [Introduction to ecological land classification](https://www.ontario.ca/page/introduction- ecological-land-classification-systems)

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 waterflow and/or navigation on a watercourse or waterbody. This data shows natural and manmade poly features.  Examples include: * break walls * dams * rapids * shipwrecks [Technical Bulletin: Data migrated to new Ontario Hydro Network (OHN) - Hydrographic Feature Data Classes (PDF)](http://geo2.scholarsportal.info/proxy.html?http:__maps.scholarsportal.info/files/PDFS/public/OGDE/OHN/TB-OHN-PostMigration_101112.pdf)

A tank is an above ground container that holds either petroleum or water. This data is no longer being updated. It is best suited for historical research and analysis.