USGS Library

The fourth volume of the comprehensive history of the U.S. Geological Survey, Minerals, Lands, and Geology for the Common Defence and General Welfare: Volume 4, 1939‒1961, has been issued as an electronic document.

The USGS Science Data Catalog (SDC) recently completed and launched a new and improved interface, making USGS data more accessible and discoverable for users. The USGS SDC is a searchable public data catalog for more than 7,000 USGS data assets and 20 USGS collections.