Capitol Rock, located in the Long Pines land unit in Montana, is a massive white sandstone remnant which originated as a volcanic ash deposit. This unique formation resembles the Nation's Capitol Building in Washington, DC.
It is one of two National Natural Landmarks on the Sioux R.D.
Directions
From Camp Crook, SD go 3 miles west on Hwy 20. At fork, turn right on Forest Road 3116 (Capitol Rock Road) and follow road approximately 7 miles to Capitol Rock.
GPS Coordinates
Latitude 45° 49′ 35.0000″ N
Longitude 104° 27′ 19.0001″ W