| Global Historical Climatology Network (GHCN) Global Daily Climate Data |
NOAA National Centers for Environmental Information |
1763 - present |
|
| Global Land Resources GIS Models and Databases for Poverty and Food Insecurity Mapping |
United Nations. Food and Agriculture Organization (FAO) |
2002 |
|
| Global Map of Irrigation Areas (GMIA) |
United Nations. Food and Agriculture Administration (FAO) |
2013 |
|
| Goch, Eastern Holland. 1:25,000. Map Sheet 4302, 3rd Edition, December 1944 |
United States. Army Map Service |
1944 |
|
| Golf Courses (GLF) |
DMTI Spatial Inc. |
2002 - 2014 |
|
| Golf Courses Point |
DMTI Spatial Inc. |
2015 - 2023 |
|
| Government Buildings Point |
DMTI Spatial Inc. |
2015 - 2023 |
|
| Grand River Information Network |
Grand River Conservation Authority |
Various |
|
| Great Britain Ordnance Survey (OS) Open Data |
Ordnance Survey |
Varies by dataset |
|
| Great Lakes - St. Lawrence Basin Watersheds |
Ontario Ministry of Natural Resources |
2002 - 2009 |
|
| Great Lakes Bathymetry |
National Oceanic and Atmospheric Administration (NOAA) |
1996 - 1999 |
|
| Great Lakes Conservation Blueprint for Biodiversity |
Ontario Ministry of Natural Resources |
2005 |
|
| Great Lakes Information Network (GLIN), Great Lakes Mapping & GIS |
Great Lakes Commission |
Various |
|
| Great Lakes Islands (International) - Grouped Coastal Environments |
Ontario Ministry of Natural Resources |
2006 - 2010 |
|
| Great Lakes Islands (International) - Islands |
Ontario Ministry of Natural Resources |
2006 - 2010 |
|
| Greater Toronto and Hamilton Area (GTHA) Boundary |
Ontario Ministry of Natural Resources |
2012 |
|
| Greater Toronto and Hamilton Area (GTHA) Boundary |
DMTI Spatial Inc. |
2002 - 2012 |
|
| Greater Toronto Area (GTA) Boundary |
DMTI Spatial Inc. |
2012 |
|
| Greater Toronto Area (GTA) Boundary |
Ontario Ministry of Natural Resources |
2012 |
|
| Greater Toronto Area (GTA) Orthophotography - 1995 |
Ontario Ministry of Natural Resources |
1995 |
|
