Collapsed lava tube
Three Parks in Southern Idaho
Craters of the Moon, Hagerman Fossil Beds and Minidoka are 3, one paw rated parks in southern Idaho. Dogs are not very welcome and there are no pet trails.
City of Rocks National Reserve
City of Rocks National Reserve is a pet friendly park with rock climbing, camping, 22 miles of hiking, biking and equestrian trails. It gets 4-paws.