1967 Map of Platoro

About this map

Platoro sits at the heart of this high-elevation landscape, where the Conejos River meets the massive Platoro Reservoir. In the late 1960s, this area of the Rio Grande National Forest supported both industrial interests and backcountry recreation. The presence of the Mammoth Revenue Mine near Mammoth Mountain underscores the region's mining heritage, while the Continental Divide Trail and numerous named paths like the Lake Trail highlight its role for outdoorsmen. Water dominates the geography, from the headwaters of the Alamosa River in the north to the scattered alpine basins of Glacier Lake, Tobacco Lake, and the Twin Lakes. The map captures a moment when infrastructure like the reservoir's Gatehouse and Gaging Sta operated alongside established recreation sites such as Mix Lake Campground.