Near Alpine in Brewster County, Texas — The American South (West South Central)
Ancient Rocks Boundary
Toward the west, northwest, and southwest are layers of lava and associated volcanic rocks 25 to 35 million years old. These were thrust upward, into and over most of the older sedimentary rock layers. Many of the molten rock masses cooled and hardened underneath, while vast quantities poured over the surface in the form of lava flows and volcanic debris up to a mile in thickness. Subsequent erosion has sculptured these highlands by removing much of the younger volcanic rock, and cutting deeply into the older sea deposits. Out of the lower, igneous hills grow yucca and other cacti, contrasting with juniper
Erected 1970 by State Historical Survey Committee. (Marker Number 157.)
Location. 30° 22.508′ N, 103° 32.019′ W. Marker is near Alpine, Texas, in Brewster County. Marker is at the intersection of U.S. 90 and U.S. 67, on the right when traveling west on U.S. 90. Touch for map. Marker is in this post office area: Alpine TX 79830, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within 8 miles of this marker, measured as the crow flies. Brewster County (here, next to this marker); Lawrence Sullivan Ross (approx. 7.1 miles away); Burgess' Water Hole (approx. 7½ miles away); Nolte-Rooney House (approx. 7.6 miles away); Gage-Van Sickle (approx. 7.6 miles away); J. C. Bird (approx. 7.6 miles away); City Building (approx. 7.7 miles away); First Baptist Church of Alpine (approx. 7.7 miles away). Touch for a list and map of all markers in Alpine.
Categories. • Natural Features •
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Credits. This page was last revised on September 17, 2019. This page originally submitted on January 11, 2010, by Richard Denney of Austin, Texas. This page has been viewed 870 times since then and 38 times this year. Photos: 1. submitted on January 11, 2010, by Richard Denney of Austin, Texas. 2. submitted on November 24, 2012, by Zacharias Beau T of Alpine, Texas. 3, 4. submitted on January 11, 2010, by Richard Denney of Austin, Texas. 5. submitted on November 7, 2012, by Bill Kirchner of Tucson, Arizona. 6. submitted on January 11, 2010, by Richard Denney of Austin, Texas. • Bill Pfingsten was the editor who published this page.