Quadrangle Indexes

Upper Midwest Environmental Sciences Center

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Maps, Quadrangles, and Figures

Digital Orthophoto Quadrangles (DOQ)

Quadrangle Indexes

Names and codes associated with USGS quadrangles

Data transfer and file format information.

These data sets were created to provide users with (1) the approximate boundaries of USGS quadrangles and (2) the names and indexing codes associated with each quadrangle.

Quadrangle Indexes

Note: Quadrangle boundaries are approximate. All files are stored in decimal degree coordinates, North American Datum 1927 (NAD27).

- 1:250,000-scale Quadrangles (4.1 mbyte Shape)

- 1:100,000-scale Quadrangles (8.0 mbyte Shape)

- 1:24,000-scale Quadrangles (2.1 mbyte Shape)

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U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.umesc.usgs.gov/data_library/maps_quads_figs/quad_indexes.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified: October 2, 2007