
The Purgatoire River carves through the landscape of Las Animas County, shaping a region defined by early 20th-century coal extraction and rural settlement. During the early 1950s, the industrial footprint of the Colorado and Wyoming Railway remains central to the economy, connecting mining sites like the Boncarbo Mine and several inactive operations near Primero. This period shows a transition in the local infrastructure, with numerous civic landmarks marked as inactive or abandoned, including the Middle Burro Canyon School and the Primero School.
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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 · Madrid
USGS Topo · 1:24,000
1951 · Starkville
USGS Topo · 1:24,000
1954 · Trinidad
USGS Topo · 1:250,000