Geospatial Data
| Title Sort descending | Author | Year | Sample |
|---|---|---|---|
| Agricultural Resource Inventory (ARI) - Final | Ontario Ministry of Agriculture, Food, and Rural Affairs | 2017 | |
| Agro-MAPS Global | United Nations. Food and Agriculture Organization (FAO) |
2005 | |
| Air Quality Data Sets: Pollutant and Smog Data and Forecasts | Ontario Ministry of the Environment, Conservation, and Parks | Various, from 2000 | |
| Air Transport Point | DMTI Spatial Inc. | 2015 - 2023 | |
| Airport | Ontario Ministry of Natural Resources | 2011 | |
| Airport - Replaced | Ontario Ministry of Natural Resources | 1997 - 2006 | |
| Almkerk, Holland. 1:25,000. Map Sheet 10 N.W., 1st Edition, Defence Overprint, 20 January 1945 | United States. Army Map Service | 1945 | |
| Alternate Street Types (alt_types) | DMTI Spatial Inc. | 2012 - 2014 | |
| Ambient Groundwater Geochemistry Data for Southwestern Ontario, 2007-2014 | Ontario Geological Survey |
2015 | |
| Antennas And Frequencies Point | DMTI Spatial Inc. | 2015 - 2023 | |
| Aquaculture Area of Impact | Ontario Ministry of Natural Resources | 2004 - 2011 | |
| Aquatic Feeding Area | Ontario Ministry of Natural Resources | 1997 - 2006 | |
| Aquatic Landscape Inventory System (ALIS) | Ontario Ministry of Natural Resources | 2001 - 2003 | |
| Aquatic Resource Area | Ontario Ministry of Natural Resources | 2009 - 2011 | |
| Arc Hydro Quaternary Watershed Sessions | Ontario Ministry of Natural Resources | 2007 - 2009 | |
| Arctic Spatial Data Infrastructure | Operated by National Land Survey of Finland in the Arctic SDI cloud environment hosted by the Norwegian Mapping Authority. Contributions by National Mapping Agencies and other partners and affiliates. | ||
| Area Code Boundaries (ACB) | DMTI Spatial Inc. | 2001 - 2014 | |
| Areas of Natural and Scientific Interest (ANSI) | Ontario Ministry of Natural Resources | 1997 - 2012 | |
| Arenas Point | DMTI Spatial Inc. | 2015 - 2023 | |
| Arnhem East, Holland. 1:12,500. Map Sheet 6 N.W./3, Emergency Edition, March 1945 | Canada. Royal Canadian Engineers | 1945 | |