USGS · fs10502
Cooperative Topographic Mapping Program
Abstract
The mission of the Cooperative Topographic Mapping (CTM) Program of the U.S. Geological Survey (USGS) is to provide the Nation with access to current, accurate, and consistent base geographic data and derivative products, including topographic maps. The CTM Program has the lead responsibility to develop, maintain, and make available The National Map.
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Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey. 2002. Cooperative Topographic Mapping Program. https://doi.org/10.3133/fs10502
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