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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. National Rail Network 1:100,000

Polygon Harvard University Public content
2000. Bureau of Transportation Statistics, comp. The Rail Network is a comprehensive database of the nation's railway system including all railway mainlines, railroad yards, and major sidings in t... Bureau of Transportation Statistics.

3. National Rail Network 1:2,000,000

Polygon Harvard University Public content
2000. Bureau of Transportation Statistics, (comp.). The Rail Network is a comprehensive database of the nation's railway system including all railway mainlines, railroad yards, and major sidings in t... Bureau of Transportation Statistics.

5. 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).

9. MassGIS 2003 Massachusetts Major Watersheds (Polygons) (June 2000)

Polygon Harvard University Public content
2000. MassGIS (Office : Mass.). This datalayer contains polygons representing Massachusetts watersheds (see also the Watersheds (Arcs) datalayer). MassGIS has produced a statew... Office of Geographic and Environmental Information (MassGIS).

10. MassGIS 2003 Massachusetts Soils (Polygons) (December 2000)

Polygon Harvard University Public content
2000. MassGIS (Office : Mass.). This datalayer contains polygons representing soil survey areas for a portion of the state of Massachusetts (see also Soils (Arcs)). The soils dat... Office of Geographic and Environmental Information (MassGIS).

11. Census American Indian Tribal Subdivisions, 2000 - North Dakota

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer depicts feature location and other associated data for American Indian Tribal Subdivisions for those entities established on January... U.S. Department of Commerce, Bureau of the Census.

12. Census Public Use Microdata Areas, 2000 - Colorado

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Public Use Microdata Areas (PUMAs) for the state. A public use microdata area (PUMA) is a decennial census area for wh... U.S. Department of Commerce, Bureau of the Census.

13. UA Census American Indian Reservations, 2000 - Alabama

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer depicts feature location and other associated data for American Indian tribal entities for those entities established on January 1, ... U.S. Department of Commerce, Bureau of the Census.

14. UA Census American Indian Reservations, 2000 - Alaska

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer depicts feature location and other associated data for American Indian tribal entities for those entities established on January 1, ... U.S. Department of Commerce, Bureau of the Census.

15. UA Census American Indian Reservations, 2000 - Arizona

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer depicts feature location and other associated data for American Indian tribal entities for those entities established on January 1, ... U.S. Department of Commerce, Bureau of the Census.

16. UA Census American Indian Reservations, 2000 - California

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer depicts feature location and other associated data for American Indian tribal entities for those entities established on January 1, ... U.S. Department of Commerce, Bureau of the Census.

17. UA Census American Indian Reservations, 2000 - Colorado

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer depicts feature location and other associated data for American Indian tribal entities for those entities established on January 1, ... U.S. Department of Commerce, Bureau of the Census.

18. UA Census American Indian Reservations, 2000 - Connecticut

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer depicts feature location and other associated data for American Indian tribal entities for those entities established on January 1, ... U.S. Department of Commerce, Bureau of the Census.

19. UA Census American Indian Reservations, 2000 - Delaware

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer depicts feature location and other associated data for American Indian tribal entities for those entities established on January 1, ... U.S. Department of Commerce, Bureau of the Census.

20. UA Census American Indian Reservations, 2000 - Florida

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer depicts feature location and other associated data for American Indian tribal entities for those entities established on January 1, ... U.S. Department of Commerce, Bureau of the Census.