Pecos River waters define the southern reaches of this West Texas landscape, where the arid terrain is marked by deep draws and named drainages. Twelvemile Cr winds through the northern portion of the territory, eventually leading toward the settlement at Twelvemile Camp. This area of Pecos County is characterized by significant topographical shifts, most notably at East Prong Simpson Canyon in the northwest. Transportation in this era relied on the established path of River Rd, which traces the river's course, and the arterial highway network that cuts across the central plains to connect these remote outposts.
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This is the sole edition of this map. No revisions or reprints were ever made.
1928 · Rankin
USGS Topo · 1:125,000
1929 · Sheffield
USGS Topo · 1:125,000
1954 · Sonora
USGS Topo · 1:250,000
1954 · San Angelo
USGS Topo · 1:250,000
1958 · Sonora
USGS Topo · 1:250,000
1958 · San Angelo
USGS Topo · 1:250,000
1965 · San Angelo
USGS Topo · 1:250,000
1967 · Twelvemile Camp
USGS Topo · 1:24,000
1967 · Divide Country
USGS Topo · 1:24,000
1967 · Deer Canyon
USGS Topo · 1:24,000