The Rio Grande carves a sharp, winding international boundary through the Chihuahuan Desert landscape on this 2016 survey, separating Terrell Co, Texas, from the Estados Unidos Mexicanos. This protected stretch, designated as the Rio Grande Wild and Scenic River, is characterized by dramatic elevation shifts and deep drainage systems like Shafter Canyon and Britton Canyon. The terrain rises toward the Shafter Hills and the high point at Loma Vista, while life in this arid environment centers on rare water sources such as Blue Water Hole Spring. Only one primary route, Shafter Crossing Rd, penetrates this section of the river border, highlighting the isolation of the canyons and the seasonal creeks including Indian Creek and Buena Creek that feed the main river channel.
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This is the sole edition of this map. No revisions or reprints were ever made.
1918 · Dryden Crossing
USGS Topo · 1:62,500
1943 · Malvado
USGS Topo · 1:62,500
1944 · Malvado
USGS Topo · 1:62,500
1958 · Del Rio
USGS Topo · 1:250,000
1959 · Emory Peak
USGS Topo · 1:250,000
1964 · Del Rio
USGS Topo · 1:250,000
1965 · Emory Peak
USGS Topo · 1:250,000
1979 · Cook Creek North
USGS Topo · 1:24,000
1979 · Cook Creek South
USGS Topo · 1:24,000
1983 · Balcon Creek
USGS Topo · 1:24,000