Colorful red rocks of Entrada Sandstone are domed up by deep seated igneous intrusions to be exposed by erosion. The same igneous activity created the Carrizo Mountains to the west. Uranium deposits in the Morrison Formation just above the Entrada created New Mexico's first uranium boom in the East Carrizo south of here in the 1950's. Elevation 5,600 feet.

Marker is on State Route 504 (U.S. 64 at milepost 3.5), on the right when traveling west.

Courtesy hmdb.org

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