Mid-Tertiary and Pleistocene sections, Sotol Vista to Cerro Castellan, Big Bend National Park, southwestern Brewster County, Trans-Pecos Texas
James B. Stevens, 1988. "Mid-Tertiary and Pleistocene sections, Sotol Vista to Cerro Castellan, Big Bend National Park, southwestern Brewster County, Trans-Pecos Texas", South-Central Section of the Geological Society of America, O. T. Hayward
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Texas 118 becomes the main park road at the western entrance to Big Bend National Park, in southwestern Brewster County, Trans-Pecos Texas. The traverse lies along Ross Maxwell Appreciation Scenic Drive, which turns off the main park road 9.4 mi (15.1 km) east of this entrance, and provides principal access to the southwestern part of the park. The traverse begins at Sotol Vista (Fig. 1), a 0.3 mi (0.5 km) loop off the drive 8.5 mi (13.7 km) from the turn, and ends at the eastern base of Cerro Castellan 9.4 mi (15.1 km) to the southwest.
The traverse provides examples of the stratigraphy (Figs. 2,3) and structure on which many conclusions about the eastern part of an intraplate boundary are based. This traverse lies entirely within a national park; without the proper permits it is illegal to collect rocks, fossils, plants, or animals, and unwise to carry a rock hammer. Collecting permits should be arranged well in advance with the Resource Management Office, Big Bend National Park. It is also important to remember that this is desert country. There is no reliable supply of potable water along Ross Maxwell Appreciation Drive.