
The Continental Divide forms a massive high-altitude spine across this section of southern Colorado, marking the boundary between the Rio Grande National Forest and the San Juan National Forest. This landscape is dominated by the sprawling South San Juan Wilderness, where ancient glacial activity is evidenced by high-mountain basins holding Victoria Lake, Burro Lake, and Laguna Reubal. The southwestern portion of the map is defined by the historic boundaries of the Pierra Amarilla Grant, reflecting early land division patterns in the San Juan Mountains.
39 named features on this map. Tap any name to fly to it.
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2 editions found
1913 · Summitville
USGS Topo · 1:125,000
1915 · Summitville
USGS Topo · 1:125,000
1922 · Conejos
USGS Topo · 1:125,000
1945 · Durango
USGS Topo · 1:250,000
1953 · Durango
USGS Topo · 1:250,000
1954 · Durango
USGS Topo · 1:250,000
1957 · Chama Peak
USGS Topo · 1:62,500
1961 · Durango
USGS Topo · 1:250,000
1963 · Durango
USGS Topo · 1:250,000
1966 · Durango
USGS Topo · 1:250,000