
Terlingua and the surrounding Chihuahuan Desert landscape are captured here during a pivotal era of mercury mining and ranching. This cooperative survey between the U.S. Geological Survey and the University of Texas Mineral Survey highlights the industrial activity of the period, specifically at the Colquitt-Tigner Mine and Mc Kinney-Parker Mine. The terrain is defined by the massive circular geological formation of the Solitario and the dramatic course of the Rio Grande, which carves the Grand Canyon of Santa Helena along the border with Mexico.
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