Nine Mile Waterhole Spring serves as a vital water source in this high-desert region of Presidio County, marking a specific point of human and animal interest within the arid landscape. The terrain is defined by the drainage patterns of Wild Horse Cr and the broad Ryan Draw, which channel seasonal moisture across the high plains. Transport across this sparsely settled territory relies on a network of unpaved corridors, including Old Brite Rd and Ryan Rd, which link the isolated ranching properties of the Big Bend country. The map illustrates a ranching economy where access to water and the navigation of subtle topographic shifts dictate the placement of roads and landmarks in a vast, open environment.
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1892 · Chispa
USGS Topo · 1:125,000
1894 · Valentine
USGS Topo · 1:125,000
1895 · Chispa
USGS Topo · 1:125,000
1895 · Marfa
USGS Topo · 1:125,000
1896 · San Carlos
USGS Topo · 1:125,000
1897 · Valentine
USGS Topo · 1:125,000
1897 · Chispa
USGS Topo · 1:125,000
1943 · Valentine
USGS Topo · 1:125,000
1959 · Marfa
USGS Topo · 1:250,000
1965 · Marfa
USGS Topo · 1:250,000