Since its creation in 1882, the UGSS Library has grown to become the world's largest library dedicated to earth and natural science, holding more than 1.5 million volumes and 800,000 maps. Richard Huffine, Director of the USGS Libraries Program, will highlight some of the rarest, most valuable, and significant materials held by the USGS. These include early maps of America, documents that establish the provenance of the Hope Diamond, and documentation of our exploration of the American West by Hayden, King, Powell and Wheeler.
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