
The Purgatoire River, also labeled as the Picketwire River, carves through the southern landscape of Las Animas County, serving as the primary drainage for a network of deeply incised canyons. In the early 1950s, the region's industrial character was defined by coal extraction, though many operations like the Boncarbo Mine and Primero Mine were already listed as inactive. These settlements, including Boncarbo, Madrid, and Primero, were built around the canyon floors, following the natural geography of Reilly and Burro canyons.
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3 editions found
1891 · Spanish Peaks
USGS Topo · 1:125,000
1893 · Spanish Peaks
USGS Topo · 1:125,000
1895 · Spanish Peaks
USGS Topo · 1:125,000
1897 · Spanish Peaks
USGS Topo · 1:125,000
1900 · Spanish Peaks
USGS Topo · 1:125,000
1951 · Trinidad
USGS Topo · 1:24,000
1951 · Valdez
USGS Topo · 1:24,000
1951 · Starkville
USGS Topo · 1:24,000
1954 · Trinidad
USGS Topo · 1:250,000
1955 · Trinidad
USGS Topo · 1:250,000