Koehler Mine and its associated extraction sites, including Koehler Number One and Koehler Number Three Mine, define the industrial activity in this corner of Colfax County. Located in the northeastern portion of the quadrangle, these mines sit at the confluence of several drainages, such as Prairie Crow Canyon and Ashenfelder Canyon. The landscape is a network of deep incisions carved by water, with Saltpeter Creek and Curtis Creek flowing through their respective canyons toward the southern flats. Near the base of Saltpeter Mountain, the Saltpeter Dam and the nearby Twin Lakes indicate water management efforts in this arid environment, providing a focal point for researchers interested in the intersection of mining infrastructure and natural hydrology in New Mexico.
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This is the sole edition of this map. No revisions or reprints were ever made.
1915 · Brilliant
USGS Topo · 1:62,500
1915 · Koehler
USGS Topo · 1:62,500
1917 · Koehler
USGS Topo · 1:62,500
1954 · Raton
USGS Topo · 1:250,000
1955 · Cimarron
USGS Topo · 1:62,500
1958 · Raton
USGS Topo · 1:250,000
1962 · Casa Grande
USGS Topo · 1:62,500
1971 · Saltpeter Mountain
USGS Topo · 1:24,000
1971 · Curtis Camp
USGS Topo · 1:24,000
1971 · Red River Peak
USGS Topo · 1:24,000