2012 Map of Obsidian Cliff

About this map

Obsidian Cliff and the thermal terrain of Porcelain Basin dominate this high-altitude corner of Park County. The map documents a landscape shaped by volcanic history and geothermal activity, visible through a dense concentration of named hydrothermal features. Numerous water sources such as Apollinaris Spring, Whiterock Springs, and Frying Pan Spring dot the terrain, while Roaring Mountain stands as a prominent geothermal landmark. Drainage patterns are defined by the winding paths of Obsidian Cr and Solfatara Cr, which carve through the distinct topography of Obsidian Canyon. This survey captures the natural state of the wilderness in the early 21st century, detailing the many ponds and lakes like Nymph Lake and Lake of the Woods that fill the depressions between these ancient geological formations.