Near Marathon in Brewster County, Texas — The American South (West South Central)
Denuded Ouachita Rock Belt
In the hillside toward the northeast, the highly deformed strata are overlaid by almost horizontal layers of "younger" rock - formed about 135 million years ago. Erosion wore down the old mountains; and when the area was covered by the sea, the horizontal layers were deposited on the sea floor.
Later uplifting earth movement comparable in age to the forming of the Rocky Mountain range gently elevated this area, exposing it to erosional forces which have shaped the topography seen today.
This region abounds in vivid lessons in geology, and is
Erected 1970 by State Historical Survey Committee. (Marker Number 1209.)
Location. 30° 12.777′ N, 102° 59.305′ W. Marker is near Marathon, Texas, in Brewster County. Marker is on U.S. 90 14 miles east of U.S. 385, on the right when traveling east. Touch for map. Marker is in this post office area: Marathon TX 79842, United States of America. Touch for directions.
Categories. • Natural Features •
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Credits. This page was last revised on September 18, 2019. This page originally submitted on January 13, 2010, by Richard Denney of Austin, Texas. This page has been viewed 1,032 times since then and 25 times this year. Photos: 1, 2, 3. submitted on January 13, 2010, by Richard Denney of Austin, Texas. • Bill Pfingsten was the editor who published this page.