Title: Aerial gamma-ray surveys of the United States, including Alaska (U.S. Geological Survey open-file report)
Description: These 13 discs contain data from Alaska and conterminous U.S. separated by states into geographical areas. Files collected as part of NURE Program of Dept. of Energy flown from 1975 to 1983.
Subjects: Radioactive prospecting, Uranium ores, Remote sensing