USGS · fs13401
Map Indexes Available from the U.S. Geological Survey
Abstract
Each year the U.S. Geological Survey (USGS) produces thousands of new and revised topographic and geologic maps, as well as other types of cartographic products. To provide easy access to these maps, the USGS publishes indexes that are updated periodically.
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Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey. 2001. Map Indexes Available from the U.S. Geological Survey. https://doi.org/10.3133/fs13401
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