Geologic reconnaissance of the Antelope-Ashwood area north-central Oregon with emphasis on the John Day Formation of Late Oligocene and Early Miocene age /
|Main Author:||Peck, Dallas L. 1929-|
|Other Authors:||Geological Survey (U.S.),, Oregon. Department of Geology and Mineral Industries,|
Washington, D.C. :
United States Department of the Interior, Geological Survey,
1 online resource (iii, 26 pages, 1 page of plate) : illustrations, maps, charts, photographs.
Geological Survey bulletin ;
Contributions to general geology.