Inside Jack Jones Ice Cave near Tennant, California.  There is a north & south passage, this is looking about 100 feet inside the north passage.  This direction of the cave is marked with jumbo sized boulders (some even the size of school buses) & hard navigation as ceiling breakdown chokes the former passageway.  I did not go the entire distance as ropes may be required to get past.  The boulder I stood on for this panorama is about the size of a standard sedan.