Colorado River Raft Tour - a small volcanic cinder cone

Detailed Description
~ Mile 178.8: A small volcanic cinder cone formed on the edge of the rim on the south side of the canyon above Lava Falls Rapid.
Sources/Usage
Public Domain.
~ Mile 178.8: A small volcanic cinder cone formed on the edge of the rim on the south side of the canyon above Lava Falls Rapid.
Public Domain.