
The Rio Grande carves a dramatic international border through the high desert of the Big Bend region, defined by the towering walls of Santa Elena Canyon. At the start of the 20th century, this landscape was transitioning from a ranching frontier to a mining powerhouse, anchored by the Colquitt-Tigner Mine and the mercury prospecting around Study Butte and Terlingua. The map reveals a network of isolated outposts such as Howards Ranch and Crenshaws Camp, connected by rugged paths like the Telephone Trail.
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This is the sole edition of this map. No revisions or reprints were ever made.
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