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1. 1990 Census Roads - San Francisco Bay Area, California

Line Stanford University Public content
1990. California. Metropolitan Transportation Commission. This line shapefile contains primary and secondary roads for the San Francosco Bay Area in California. Primary roads are generally divided, limited... California. Metropolitan Transportation Commission.

2. 1990 County Boundaries of China with Population Census Data, Part 1

Polygon New York University Restricted content
1990. This polygon shapefile represents the 1990 County Boundaries for China. The layer includes population census data and was primarily based on the "T... Beijing Hua tong ren shi chang xin xi you xian ze ren gong si.

3. 1990 County Boundaries of China with Population Census Data, Part 2

Polygon New York University Restricted content
1990. This polygon shapefile represents the 1990 County Boundaries for China. The layer includes population census data and was primarily based on the "T... Beijing Hua tong ren shi chang xin xi you xian ze ren gong si.

4. Alabama Block Centroid Populations

Point Harvard University Restricted content
1990. Environmental Systems Research Institute, Inc. (ESRI) and Harvard Geospatial Library. Alabama Block Centroid Populations represents the population of the U.S. Census block centroids for Alabama. U.S. Census blocks are the smallest ge... Environmental Systems Research Institute, Inc. (ESRI).

5. Alaska Block Centroid Populations

Point Harvard University Restricted content
1990. Environmental Systems Research Institute, Inc. (ESRI) and Harvard Geospatial Library. Alaska Block Centroid Populations represents the population of the U.S. Census block centroids for Alaska. U.S. Census blocks are the smallest geog... Environmental Systems Research Institute, Inc. (ESRI).

6. Arizona Block Centroid Populations

Point Harvard University Restricted content
1990. Environmental Systems Research Institute, Inc. (ESRI) and Harvard Geospatial Library. Arizona Block Centroid Populations represents the population of the U.S. Census block centroids for Arizona. U.S. Census blocks are the smallest ge... Environmental Systems Research Institute, Inc. (ESRI).

7. Arkansas Block Centroid Populations

Point Harvard University Restricted content
1990. Environmental Systems Research Institute, Inc. (ESRI) and Harvard Geospatial Library. Arkansas Block Centroid Populations represents the population of the U.S. Census block centroids for Arkansas. U.S. Census blocks are the smallest ... Environmental Systems Research Institute, Inc. (ESRI).

9. Atlanta Regional Commission 1990 Census Tracts

Polygon Harvard University Restricted content
1990. Atlanta Regional Commission (ARC). This polygon datalayer depicts 1990 census tract level boundaries with associated census attribute data for the Atlanta Regional Commission's (ARC)...

10. Atlanta Regional Commission County Boundaries

Polygon Harvard University Restricted content
1990. Atlanta Regional Commission (ARC). This polygon datalayer represents the boundaries of the Atlanta Regional Commission's 10 counties, or those Georgia counties which comprise the gre...