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1967 Map of Mosca Pass

Name: 1967 Topographic Map of Mosca Pass
Creator: U.S. Geological Survey
Published: 1970
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1970

About this map

Mosca Pass serves as a critical geographic transition point between Alamosa and Huerfano counties, marking a historic breach in the high ridge of the Sangre de Cristo range. The 1960s landscape shown here is defined by rugged drainage systems including the headwaters of the Huerfano River and various high-altitude water management features such as Wilson Reservoir, Smith Reservoir, and Montez Reservoir.

Evidence of human activity is clustered near Singing River Ranch and the winding Jeep Trail, while the broader terrain is managed across several federal jurisdictions, including the Great Sand Dunes National Monument, San Isabel National Forest, and Rio Grande National Forest. Small-scale resource extraction is noted at a Gravel Pit near the pass, and a Radio Tower sits on a prominent overlook, illustrating the mid-century intersection of communication infrastructure and wild mountain terrain.