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1. State Boundaries with Demographics: California, Oregon, & Washington, 1990-1999

1990. California. Department of Fish and Game. Marine Resources Region and California. Department of Fish and Game. Marine Resources Region. This polygon shapefile contains the state boundaries for California, Oregon, & Washington. Statistical data such as population (1990 and 1999),... California. Department of Fish and Game. Marine Resources Region.

2. California Metropolitan Transportation Commission Travel Analysis Zones, 1990

1990. California. Metropolitan Transportation Commission. This polygon shapefile contains regional traffic analysis zones (RTAZ) for the San Francisco Bay Area in California. These data have ben clipped to... California. Metropolitan Transportation Commission.

3. Census Places, 1990 - San Francisco Bay Area, California

1990. California. Metropolitan Transportation Commission. This polygon shapefile contains the Census places for the state based as of January 1, 1990. Places, for the reporting of decennial census data, in... California. Metropolitan Transportation Commission.

4. Census Places, 1990 - San Francisco Bay Area, California (Clipped)

1990. California. Metropolitan Transportation Commission and U.S. Department of Commerce, Bureau of the Census, Geography Division. This polygon shapefile contains the Census places for the San Francisco Bay Area based as of January 1, 2000. These data have been clipped to the s... California. Metropolitan Transportation Commission.

5. Census Tracts, 1990 - San Francisco Bay Area, California

1990. California. Metropolitan Transportation Commission. This polygon shapefile displays Census tracts for the San Francisco Bay Area in California, based on entity boundaries established on January 1, 19... California. Metropolitan Transportation Commission.

6. Census Tracts, 1990 - San Francisco Bay Area, California (Clipped)

1990. California. Metropolitan Transportation Commission. This polygon shapefile displays Census tracts for the San Francisco Bay Area in California based on entity boundaries established on January 1, 199... California. Metropolitan Transportation Commission.

7. Census Traffic Analysis Zones, 1990 - San Francisco Bay Area, California

1990. California. Metropolitan Transportation Commission. This polygon shapefile contains the Census Traffic Analysis Zones (CTAZ) for California for the year 1990. The CTAZ zones range in size from multip... California. Metropolitan Transportation Commission.

8. Superdistricts with Populations, San Francisco Bay Area, California, 1990

1990. California. Metropolitan Transportation Commission. This polygon shapefile contains superdistrict boundaries and population statistics created by the Metropolitan Transportation Comission (MTC) using... California. Metropolitan Transportation Commission.

9. Urbanized Areas, California, 1990

1990. California. Metropolitan Transportation Commission. This polygon shapefile contains the urbanized areas of California. These data were derived from the TIGER/2000 Urbanized Areas (UA) dataset of the ... California. Metropolitan Transportation Commission.

10. County Boundaries of the United States, 1990

1990. Geological Survey (U.S.). This polygon shapefile portrays the 1990 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).

11. Spread of Africanized Honey Bees in the United States, 1990-2005

1990. United States. Agricultural Research Service. This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Isla... National Atlas of the United States.

12. MassGIS 2000 Cape Cod Endangered Plant Habitat (1990)

1990. Cape Cod Commission. This data layer contains Cape Cod's endangered plant habitats. Office of Geographic and Environmental Information (MassGIS).

13. Census Blocks, 1990 - District of Columbia

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons in this datalayer represent U.S. Census Blocks for the entire District of Columbia. Census blocks are areas bounded on all sides by v... U.S. Department of Commerce, Bureau of the Census.

14. Census County Divisions, 1990 - Colorado

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

15. Census County Divisions and Minor Civil Divisions, 1990 - Alabama

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Census County Divisions and Minor Civil Divisions of Alabama based on the 1990 Census. Census county divisions (CCDs) a... U.S. Department of Commerce, Bureau of the Census.

16. Census County Divisions and Minor Civil Divisions, 1990 - Alaska

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Census County Divisions and Minor Civil Divisions of Alaska. In Alaska, which has no counties, the statistically equiva... U.S. Department of Commerce, Bureau of the Census.

17. Census County Divisions and Minor Civil Divisions, 1990 - Arizona

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Census County Divisions and Minor Civil Divisions of Arizona based on the 1990 Census. Census county divisions (CCDs) a... U.S. Department of Commerce, Bureau of the Census.

18. Census County Divisions and Minor Civil Divisions, 1990 - Arkansas

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Census County Divisions and Minor Civil Divisions of Arkansas based on the 1990 Census. Census county divisions (CCDs) ... U.S. Department of Commerce, Bureau of the Census.

19. Census County Divisions and Minor Civil Divisions, 1990 - California

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Census County Divisions and Minor Civil Divisions of California based on the 1990 Census. Census county divisions (CCDs... U.S. Department of Commerce, Bureau of the Census.

20. Census County Divisions and Minor Civil Divisions, 1990 - Connecticut

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

21. Census County Divisions and Minor Civil Divisions, 1990 - Florida

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

22. Census County Divisions and Minor Civil Divisions, 1990 - Hawaii

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

23. Census County Divisions and Minor Civil Divisions, 1990 - Idaho

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

24. Census County Divisions and Minor Civil Divisions, 1990 - Illinois

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

25. Census County Divisions and Minor Civil Divisions, 1990 - Indiana

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

26. Census County Divisions and Minor Civil Divisions, 1990 - Iowa

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

27. Census County Divisions and Minor Civil Divisions, 1990 - Kansas

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

28. Census County Divisions and Minor Civil Divisions, 1990 - Kentucky

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

29. Census County Divisions and Minor Civil Divisions, 1990 - Louisiana

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

30. Census County Divisions and Minor Civil Divisions, 1990 - Maine

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

31. Census County Divisions and Minor Civil Divisions, 1990 - Maryland

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

32. Census County Divisions and Minor Civil Divisions, 1990 - Massachusetts

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

33. Census County Divisions and Minor Civil Divisions, 1990 - Michigan

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

34. Census County Divisions and Minor Civil Divisions, 1990 - Minnesota

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

35. Census County Divisions and Minor Civil Divisions, 1990 - Mississippi

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

36. Census County Divisions and Minor Civil Divisions, 1990 - Missouri

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

37. Census County Divisions and Minor Civil Divisions, 1990 - Montana

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

38. Census County Divisions and Minor Civil Divisions, 1990 - Nebraska

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

39. Census County Divisions and Minor Civil Divisions, 1990 - Nevada

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

40. Census County Divisions and Minor Civil Divisions, 1990 - New Hampshire

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

41. Census County Divisions and Minor Civil Divisions, 1990 - New Jersey

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

42. Census County Divisions and Minor Civil Divisions, 1990 - New Mexico

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

43. Census County Divisions and Minor Civil Divisions, 1990 - New York (State)

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

44. Census County Divisions and Minor Civil Divisions, 1990 - North Carolina

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

45. Census County Divisions and Minor Civil Divisions, 1990 - North Dakota

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

46. Census County Divisions and Minor Civil Divisions, 1990 - Ohio

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

47. Census County Divisions and Minor Civil Divisions, 1990 - Oklahoma

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

48. Census County Divisions and Minor Civil Divisions, 1990 - Oregon

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

49. Census County Divisions and Minor Civil Divisions, 1990 - Pennsylvania

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.

50. Census County Divisions and Minor Civil Divisions, 1990 - Rhode Island

1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi... U.S. Department of Commerce, Bureau of the Census.