1964 Map of Weminuche Pass

About this map

The Continental Divide dictates the flow of water and human movement across this high-country landscape, where the Rio Grande headwaters meet the rugged San Juan range. In the northern reaches, the Rio Grande Reservoir is a dominant landmark, with its spillway and nearby Thirtymile Campground serving as hubs for activity near the Gaging Sta. The map documents a transition between the Rio Grande National Forest and the San Juan National Forest, bridged by the historically significant Weminuche Pass. Evidence of high-altitude transit and livestock management is visible through the Squaw Stock Driveway and several pack trails. Traces of early infrastructure appear at the Stage Station and nearby Ruins, while the Raber Lohr Ditch and Fuchs Ditch indicate localized efforts to manage water resources for downstream use.