1981. 2016-01-11T16:54:21Z. 2016-07-14T21:07:59Z. Van Horn, Richard, 1920-. The Survey. English. cartographic image. Public. Utah, Davis County, Salt Lake County, U.S., Davis County., and Salt Lake County. Pre-Quaternary.
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2. Isopach map of Quaternary and Upper Tertiary strata, Norton Sound, Alaska [cartographic material]
1981. 2002-06-01T04:00:00Z. 2023-02-15T04:01:27Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Alaska. Quaternary and Tertiary.
1981. 2002-06-01T04:00:00Z. 2023-02-15T04:01:27Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. California. Quaternary.
1981. 2002-06-01T04:00:00Z. 2023-01-31T04:04:30Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Southern States. Tertiary.
1981. 2002-06-01T04:00:00Z. 2022-12-16T04:01:22Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. California. Quaternary.