Approximate location — plotted from published sources, not a site visit, and not a guarantee of access.
Deep basalt canyon cut by the Owens River between Crowley Lake and Pleasant Valley Reservoir north of Bishop. Vertical jointed basalt walls expose Bishop Tuff–related and later volcanic flows; a classic Eastern Sierra geology stop and major sport-climbing venue. Public access via Gorge Road off US-395 with multiple rim parking areas and scramble descents to the river. Distinct from Volcanic Tableland / Chalk Bluff (Bishop Tuff plateau) and from Hot Creek Geologic Site.