USGS: Science Topics: map regions

Science Topics

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Map regions

Alexandria Digital Library Feature Type Thesaurus

Subtopics:
Map quadrangle regions (2 items)

Results 1 - 2 of 2 listed by similarity [list alphabetically]

Quadrangle indexes [More info]: GIS data files containing approximate boundaries of the various USGS quadrangles, with names and indexing codes associated with each quadrangle.
Scanning and georeferencing historical USGS quadrangles [More info]: We are scanning all scales and all editions of approximately 250,000 topographic maps published by USGS since the inception of the topographic mapping program in 1884. They will be available to the public at no direct cost.

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U.S. Department of the Interior | U.S. Geological Survey
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