Picketwire Valley forms a significant geographical corridor in the southern reaches of this landscape, where the Purgatoire River flows past the small communities of Madrid and Tijeras. This area of Las Animas County is defined by a dense network of drainages and named canyons, including Reilly Canyon, Burro Canyon, and Chinamans Canyon. For local historians and genealogists, the map identifies specific community landmarks such as the Burro Canyon Cem and San Juan Cem, alongside the sites of the Midway School and Colorado Standard School. The settlement at Boncarbo sits central to the northern hills, connected by a series of county roads like Co RD-32.8 that traverse the high ridges and deep draws characteristic of the region.
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This is the sole edition of this map. No revisions or reprints were ever made.
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