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Geology of National Parks, 3D and Photographic Tours

Big Bend National Park
Cerro Castellan (or Castolon Peak) is a butte capped by remnants of a Miocene-age lava flow (Delaho Formation) overlying volcanic ash and stream deposits of the Chisos Formation. The butte is located near Castolon and near the intersection of the River Road and the Ross Maxwell Scenic Drive in western Big Bend National Park.
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