Wisconsin Geospatial News

U.S. Geological Survey Photographic Library

The U.S. Geological Survey (USGS) Central Regional Library in Denver, Colorado maintains a collection of over 400,000 photographs taken during geologic studies of the United States and its territories from 1868 to the present.

USGS Photo Library

Currently, USGS student employees are scanning pre-1955 images from that collection for the Web-accessible Earth Sciences Photographic Archive. The Historic Photo Web Site now has nearly 34,000 photographs ranging in age from 1868 through 1992. These public domain, copyright-free photos can be viewed and downloaded free-of-charge. The photos are available in 100, 700, and 1400 dot per inch resolutions.

These images provide a visual history of the discovery, development, and sciences of the United States. Some photographs have been used in USGS publications, but most have never been published.