Alamo Creek Basalt of Chisos Group (TX-local)
Recognized in southwestern TX, notably Trans-Pecos area, Big Bend National Park, and Big Bend Ranch State Park.
early Tertiary (Eocene)
Type locality: Alamo Creek, west of Chisos Mountains, where exposed almost continuously from near Dawson Creek southward to Rio Grande, Brewster Co., southwestern TX (Maxwell and Hazzard, 1967; Henry and Davis, 1996).
Permian basin
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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