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1971 Map of Castolon

Name: 1971 Topographic Map of Castolon
Creator: U.S. Geological Survey
Published: 1985
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1985

About this map

Terlingua Abaja and Castolon sit along the northern banks of the Rio Grande in this 1971 study of the Big Bend region. The landscape is defined by the sharp transition from the Mesa de Anguila to the deep cut of Santa Elena Canyon, where the international boundary between the United States and Mexico follows the river's path. Traces of human activity are scattered across the desert floor, indicated by various Ruins and a Cem near the confluence of Terlingua Creek.

Navigation through Big Bend National Park is facilitated by routes like the Chimneys Trail, while more remote areas feature a Gaging Sta and an isolated Gravel Pit. The map captures a moment when the Boundary Treaty of 1970 was still being implemented, reflecting the complex surveying of the Texas-Chihuahua borderlands. Researchers can locate specific recreational and utilitarian points such as the Cottonwood Campground and the Santa Elena Crossing.