Otis Chalk sits in the southeastern corner of this West Texas landscape, serving as a primary point of reference in an area defined by its drainages and distinctive uplands. The terrain is marked by the Signal Mountains and Signal Peak, which rise above the surrounding plains. Hydrology plays a central role in the geography here, with Moss Cr Lake and the marshy expanse of Powell Lake collecting waters from a network of seasonal streams.
21 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1941 · Big Spring South
USGS Topo · 1:62,500
1942 · Big Spring South
USGS Topo · 1:62,500
1942 · Big Spring North
USGS Topo · 1:62,500
1951 · Iatan
USGS Topo · 1:24,000
1952 · Iatan
USGS Topo · 1:24,000
1954 · Big Spring
USGS Topo · 1:250,000
1954 · Big Spring North
USGS Topo · 1:24,000
1958 · Big Spring
USGS Topo · 1:250,000
1963 · Hayrick Mountain
USGS Topo · 1:24,000
1963 · Hyman
USGS Topo · 1:24,000