
The Alamosa River and La Jara Cr define this San Luis Valley landscape, where a sophisticated network of human-made waterways sustains the high-altitude agriculture of Conejos and Alamosa counties. The intricate irrigation system, including the Empire Canal, Richfield Canal, and San Luis Ditch, reveals a long history of water management essential for settlement in this semi-arid region.
73 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
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
1954 · Trinidad
USGS Topo · 1:250,000
1955 · Trinidad
USGS Topo · 1:250,000
1958 · Trinidad
USGS Topo · 1:250,000
1959 · Trinidad
USGS Topo · 1:250,000
1961 · Durango
USGS Topo · 1:250,000
1963 · Durango
USGS Topo · 1:250,000