The Geosciences Library is also a depository library for USGS materials including their maps. These maps are all indexed in GeoRef. The University Libraries aerial photograph collection is housed in the Geosciences library. The collection consists of nearly 18,000 Virginia photographs dated from 1936 to the mid 1980s. The majority of the collection is of sets between 1950 and 1965.
Scales vary from county to county.
County indexes are available to help locate photographs. Please check with a staff person or the Geosciences librarian as we do not have complete county coverage. The GeoRef Database from the American Geological Institute is available over the web to Virginia Tech users from Cambridge Scientific Abstracts. Worldwide marine geophysical data including bathymetry, magnetics, and gravity. Contains USGS hydrologic data for the years 1990-1993.