Local or regional rise in the elevation of the land surface, usually due to tectonic or volcanic processes.

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Geologic Map of Colorado National Monument and Adjacent Areas, Mesa County, Colorado

New 1:24,000-scale geologic mapping in the Colorado National Monument Quadrangle and adjacent areas, in support of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, provides new interpretations of and data for the stratigraphy,