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1. Global GIS : geologic provinces of the world

Polygon Harvard University Public content
2000. American Geological Institute. This shapefile includes arcs and polygons that describe U.S. Geological Survey defined geologic provinces of the World. Each province has a set o... American Geological Institute.

2. Lakes, Arizona, 1974

Polygon Public content
1974. Arizona. State Land Department. Hydro polygon features in the State of Arizona with an emphasis on lakes, ponds and reservoirs. This polygon cover consists of all the lakes and bo... Arizona State Land Department.

3. Major Lakes, Arizona, 1993

Polygon Public content
1993. Arizona. State Land Department. Depiction of major lakes in Arizona. Arizona State Land Department.
1993. Arizona. Game and Fish Department. Riparian vegetation associated with perennial waters of Arizona. The dataset was created using two major sources of imagery - Landsat Thematic Mapp... Arizona State Land Department.

5. Open Space, Cambridge, Massachusetts, 2014

Polygon Harvard University Public content
2014. Cambridge (Mass.). Geographic Information Systems. This polygon layer contains open space areas within the City of Cambridge. These areas include publicly accessible land that is intended for active... Cambridge (Mass.). Geographic Information Systems.

6. Wetlands, Cambridge, Massachusetts, 2010 (pub. 2014)

Polygon Harvard University Public content
2010. Cambridge (Mass.). Geographic Information Systems. This layer contains polygon features representing wetlands in Cambridge, Massachusetts, 2010. Cambridge (Mass.). Geographic Information Systems.

7. MassGIS 2000 Areas of Critical Environmental Concern (July 2000)

Polygon Harvard University Public content
2000. MassGIS (Office : Mass.). The Areas of Critical Environmental Concern (ACEC) datalayer shows the location of areas that have been designated ACECs by the Secretary of Enviro... Office of Geographic and Environmental Information (MassGIS).
1997. Massachusetts. Dept. of Environmental Management. The datalayer contains the majority of the facilities currently regulated under DEP's solid waste regulations (310 CMR 16.00 19.00). The 579 poly... Office of Geographic and Environmental Information (MassGIS).