2021 Map of Casa Diablo Mountain

About this map

Casa Diablo Mountain stands as the central topographic feature of this high-altitude landscape, part of the extensive Inyo National Forest. The map documents a rugged transition between the Volcanic Tableland and the dramatic incision of the Owens River Gorge. Historically significant transportation routes are etched into the terrain, including the Old Sherwin Grade and Casa Diablo Road, which provided vital passage through this challenging portion of Mono County. The presence of Mesa Camp and scattered water sources like Antelope Spring suggest the area's long-standing utility for travelers and seasonal inhabitants. Modern infrastructure is represented by the Owens Gorge Pipeline, tracing the path of the Owens River as it flows south toward the Sherwin Hill vicinity. For researchers, the map preserves the exact alignment of historical 4WD tracks and trails, such as the Lower Rock Creek Trl, alongside modern land management boundaries.