1977 Map of Devils Causeway

About this map

Chinese Wall and the narrow ridge of Devils Causeway dominate this high-altitude landscape along the border of Rio Blanco and Garfield counties. Surveyed in the mid-1970s, the map detail focuses on the alpine terrain of the Flat Tops Wilderness, where the Routt National Forest meets the White River National Forest. The hydrology of the area is captured through a dense network of mountain lakes, including the cluster of West Lost Lake and East Lost Lake, alongside the larger Stillwater Reservoir to the southeast. These waters feed prominent drainages such as the East Fork Williams Fork and the North Fork White River. The presence of numerous pack trails and remote passes like Mandall Pass underscores the region's character as a roadless wilderness managed for conservation and backcountry recreation shortly after its formal designation.