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Mineral Resources > Online Spatial Data > Geology > Conterminous US

Geology of the conterminous US (King and Beikman)

A digital version of the 1974 "King and Beikman" Geologic Map of the United States, originally published at a scale of 1:2,500,000. Alaska and Hawaii were not included. [Explanatory text accompanying the original map] Select and Download here

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[Legend for the geologic units]

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