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  • 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 infestation, but from the result of several consecutive years of infestation and other contributing factors affecting weakened trees (e.g., fungal invasion). The Government of Ontario tracks forest damage events to help proactively manage the detrimental effects to our forests.   We monitor the threat and spread of invasive forest pest insect species in Ontario. The data is also important to the Forest Management Planning process in calculating timber volume loss within affected areas Instructions for downloading this dataset: * select the link below and scroll down the metadata record page until you find **Transfer Options** in the **Distribution Information** section, * select the link beside the **Data for download** label, * you must provide your name, organization and email address in order to access the dataset This product requires the use of GIS software. [Land Information Ontario: NRVIS/OLIW Data Management Model (PDF)](http://publicdocs.mnr.gov.on.ca/View.asp?Document_ID=15732&Attachment_ID=33043) *[GIS]: geographic information system

  • Displays areas regulated as a conservation reserve in order to: * permanently protect representative ecosystems, biodiversity and significant elements of Ontario's natural and cultural heritage * provide opportunities for ecologically sustainable land uses, including traditional outdoor heritage activities and associated economic benefits * allow for scientific research and provide points of reference to support monitoring of ecological change on the broader landscape Official LIO title: Conservation Reserve Regulated

  • __Note: this Watershed, Secondary data has been replaced by the [Ontario Watershed Boundaries](https://data.ontario.ca/dataset/ontario-watershed-boundaries).__ A watershed, also known as a catchment basin, includes all land that is drained by a watercourse and its tributaries. Watersheds are split into four categories: * primary * secondary * tertiary * quaternary Secondary watersheds are subdivisions of primary watersheds in Ontario. Most secondary divisions are either large river systems or groupings of small coastal streams. These divisions are based on the federal framework originally known as the Water Resources Index Inventory Filing System.

  • This dataset contains manmade linear features in a transportation network, such as bridges and railway tunnels. It does not include roads. The linear features included are: * aerial cable ways * railway bridges * roadway bridges * railway and road bridges * pedestrian/cycle bridges * railway culverts * roadway culverts * parking lot limits * roads - edge * railway tunnels * roadway tunnels * road - under construction – edges We are no longer updating this data. It is best suited for historical research and analysis.

  • Designated gas storage areas are land areas designated by the Ontario Energy Board that contain geological formations used for subsurface storage of natural gas. Instructions for downloading this dataset: * select the link below and scroll down the metadata record page until you find **Transfer Options** in the **Distribution Information** section * select the link beside the **Data for download** label * you must provide your name, organization and email address in order to access the dataset This product requires the use of GIS software. *[GIS]: geographic information system

  • _This highly specialized publication [(Ontario Tree Seed Transfer Policy data)](https://www.ontario.ca/page/ontario-tree-seed-transfer-policy) is available in English only in accordance with Regulation 671/92, which exempts it from translation under the French Language Services Act. To obtain information in French, please contact the Ministry of Natural Resources and Forestry at (1-800-667-1940)._ The [Ontario Tree Seed Transfer Policy](https://www.ontario.ca/page/ontario-tree-seed-transfer-policy?share=8d041da0-f8f3-11ea-8b1a-e3b1c683b5f9) ensures that seed used to regenerate forests has a good chance of producing trees that are adapted to their growing environment. It specifies where seed can be collected and used and the conditions under which seed may be transferred. The data is provided as part of Appendix 1 of the Ontario Tree Seed Transfer Policy. It is available in both table and map formats , and also includes CSV and shape files. __Tabular display__ This dataset includes three tables that show the spatial direction of the seed transfer policy based on the climate similarity analysis (refer to Appendix 1 of the policy for information on the climate similarity analysis): * Table 1. For transitional period: Acceptable seed transfer from the 2010 Seed Zones of Ontario to current seed zones * Table 2. Acceptable seed transfer from the 2010 Seed Zones of Ontario to ecodistricts * Table 3. Acceptable seed transfer among ecodistricts Within the tables, you can click and sort by your location of interest to understand the best seed sources to collect from or deploy to. You can sort by either seed zone or ecodistrict. The policy recommends a climate similarity of 0.9 or greater to the targeted collection or deployment site. __Visual display__ The climate similarity analysis used in developing this policy is also available as an interactive map. Maps are available to help you make seed collection and deployment decisions, including: * collecting seed by ecodistrict or county * deploying seed by ecodistrict * deploying seed by seed zone You can also view: * [a detailed map of management unit by seed zone or by ecodistrict](https://public.tableau.com/views/SeedSourceOntario/Intro?:language=en&:display_count=y&:origin=viz_share_link) * [maps to help you make seed transfer decisions related to growing season, precipitation and temperature](https://public.tableau.com/views/SeedSourceOntario/Intro?:language=en&:display_count=y&:origin=viz_share_link)

  • 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: * small dams * small water control structures * beaver dams * water crossings * road embankments * locks * falls * rapids * culverts Each dam location has an identifier that can be used to link to other dam information databases.

  • 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.

  • 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, emergency management, as well as compliance and enforcement in the petroleum industry. The Data is collected on an on-going basis and maintained in the Ontario Petroleum Data System (OPDS). *[OPDS]: Ontario Petroleum Data System

  • The digital elevation models (DEM) are 2 m resolution raster elevation products that were generated from the Ontario Classified Point Cloud (Imagery-Derived) data. The point clouds were created via a pixel-autocorrelation process from the stereo aerial photography of the Land Information Ontario (LIO) imagery program. The DEM does not represent a full ‘bare-earth’ elevation surface. There are areas where there are very few points classified as ground and interpolation has occurred across the resulting voids. Points classified as ground have not been assessed for accuracy to determine if they represent true ground features. Some features are still raised above ground surface, such as larger buildings, larger forest stands and other raised features. This data is for geospatial tech specialists, and is used by government, municipalities, conservation authorities and the private sector for land use planning and environmental analysis.