The Rio Grande meanders across this San Luis Valley landscape, defining a complex network of agricultural irrigation in Rio Grande County. By the early 21st century, the region around the settlement of Homelake shows a highly developed system of water management, visible through major arteries like the San Luis Valley Canal and the Empire Canal. These waterways, alongside smaller features like the Billings Ditch and Centennial Ditch, illustrate the vital role of water rights and engineering in this high-altitude valley. Small junctions and loading points such as Sugar Junction, Zinzer, and Parma dot the landscape along the road and rail corridors, reflecting the area's agricultural shipping history. Landmarks like Sherman Lake and the Monte Vista Municipal Airport provide clear orientation points within this grid of county roads and drainage laterals, including the Parma Drain and McLean Drain.
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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