MIT Libraries logo

Search Constraints

1 - 5 of 5
Number of results to display per page

Search Results

1. Counties: Russian River Watershed, California, 1990

1990. Circuit Rider Productions. This polygon dataset contains county boundaries and features (usually shorelines). The county outlines were digitized from 1:100,000 scale mylar US... Circuit Rider Productions.

2. 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.).

3. Historical United States County Boundaries, 1990

1990. Earle, Carville, Heppen, John, Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology., Otterstrom, Samuel, and Cao, Changyong. This polygon shapefile contains county boundaries for the United States in 1990. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.

4. Population by County, Census: China, 1990

1990. Zhonghua di tu xue she, University of Michigan. China Data Center, China. Guo jia tong ji ju, and Beijing Hua tong ren shi chang xin xi you xian ze ren gong si. This polygon dataset represents county boundaries and population data in China from the 1990 Census. This dataset also includes detailed demographi... University of Michigan. China Data Center.

5. Population by County including Ethnicities, Census: China 1990

1990. China. Guo jia tong ji ju, Beijing Hua tong ren shi chang xin xi you xian ze ren gong si, Zhonghua di tu xue she, and University of Michigan. China Data Center. This polygon dataset represents county boundaries and population data in China from the 1990 Census. This layer also includes ethnographic informat... University of Michigan. China Data Center.