The Rio Grande snakes through this high-altitude valley, defining a landscape engineered for agriculture in the early twenty-first century. This portion of the San Luis Valley is characterized by an extensive network of water management features, including the San Luis Valley Canal, Centennial Ditch, and Costilla Canal. These irrigation systems, along with various laterals and drains like the Leyden Lateral and Bowen Drain, demonstrate the complex water rights and engineering required to sustain farming in this arid Colorado environment.
53 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.
1915 · Del Norte
USGS Topo · 1:125,000
1917 · Del Norte
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
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