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Map view of the Continental U.S. showing a national-scale elevation surface of the base of Cenozoic rocks

By Geosciences and Environmental Change Science Center
Map view of the Continental U.S. showing a national-scale elevation surface of the base of Cenozoic rocks
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Detailed Description

Map view of the Continental U.S. showing a national-scale elevation surface of the base of Cenozoic rocks. Dark brown irregular polygons are outcrops of Precambrian rocks.

Sources/Usage

Public Domain.