Central Region Library Field Records Collection

The USGS Denver Library, Field Records Collection is an archive of unpublished field notes, maps, correspondence, manuscripts, analysis reports, and other data created or collected by USGS Geologic Discipline scientists during field studies and other project work. Materials in the collection represent almost 130 years of scientific investigations by the USGS, from the earliest days of the agency to recently completed projects. Materials in the collection represent project work undertaken in the contiguous 48 states and Hawaii. Field records for the state of Alaska are kept in the Alaska Technical Data Unit Field Records Archive.