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Capitol Rock Natural Landmark

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.

General Information

Yearlong

Getting There

Latitude / Longitude

Latitude: 45.82638889

Longitude: -104.4552778

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.

Facility and Amenity Information

Restrooms

Restrooms are not available at this site.

Water

Potable water is not available at this site.

Recreation Opportunities

Viewing SceneryViewing Scenery

Last updated February 19, 2025