USGS 1:250,000 Topographic Quadrangle Series Index U.S.A. 1958-2002
- Description
- The following polygon shapefile represents the geographic extent of USGS 1:250,000 topographic maps (1- by 2-degree quadrangles) for the coterminous U.S. forty-eight states and District of Columbia.
- Publisher
- Environmental Systems Research Institute (Redlands, Calif.)
- Year
- 1992
- Held by
- Tufts
- More details at
- http://opengeometadata.stanford.edu/metadata/org.opengeoportal/sde:GISPORTAL.GISOWNER01.USTOPOQ2505802/fgdc.html
