The Geological Survey places in open files reports and maps that are preliminary or ephemeral in nature, are of interest to a small audience only, or consist of masses of essentially raw data. These reports and maps are available to the public and may be consulted at various Geological Survey and state offices. Essentially complete files of reports and maps on Alaska are maintained at Geological Survey Public Inquiries Offices in Anchorage, Alaska, San Francisco and Los Angeles, California, Denver, Colorado, and Spokane, Washington; at Geological Survey Libraries in Washington, D. C., Denver, Colorado, and Menlo Park, California; at Geological Survey Alaskan Geology Branch offices in College, Alaska, and Menlo Park, California; at Geological Survey Water Resources Division office in Juneau, Alaska; and at State of Alaska Division of Geological and Geophysical Surveys offices in Anchorage, College, and Juneau, Alaska. Reproducible material from which copies of most of the reports and maps may be made at private expense are available in the Technical Data Unit, Alaskan Geology Branch, U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025.
