North American Overlay Mapping
Layer Notes - Urban Areas
The 'Urban' foreground overlay contains colored areas that show urban occupation. These can be used to gain an idea of the extent of urban sprawl or city boundaries on the landscape. They are best displayed as an overlay under other layers such as road, rail, or city.
The data for this overlay came from a variety of sources; the major one being VMAP0 data. For more information about VMAP0, visit the www.mapability.com website.