1973 Map of Emerald Lake

About this map

The high-altitude basin of Emerald Lake and the Los Pinos River valley dominate this 1970s survey of the San Juan National Forest. Situated along the border of La Plata and Hinsdale counties, the landscape is defined by its glaciated hydrology and towering peaks. Significant alpine water bodies including Annie Lakes, Betty Lake, and Rock Lake sit at the headwaters of various drainage systems. The map illustrates a network of primitive transportation routes, specifically the Rock Creek Trail, Flint Creek Trail, and various other Pack Trails, which provided the only access into the high country. Landmarks like Mount Oso, Table Mountain, and the curiously named Barebottom Park indicate the area's use by mountaineers and backcountry travelers during this era of conservation and forest management. The presence of Cave Basin and steep canyons like Hell Canyon and Blue Spruce Canyon further illustrate the complex verticality of this part of the Colorado wilderness.