Castle Trail (East)

This eastern trailhead is one end of the longest trail in the park begins at the Door and Window Trail parking area and travels five miles one way to the Fossil Exhibit Trail parking.
Relatively level, the path passes along some badlands formations.

Trail Elevation: 2,645'
Trail Difficulty: Moderate
Trail Distance: 10 miles/16 km (round trip)

South Dakota Trails / State Parks

Willow Creek Trailhead

Willow Creek Trailhead

Sica Hollow State Park

Sica Hollow State Park

BHNF Trail #68: Eagle Cliff Trails

BHNF Trail #68: Eagle Cliff Trails

BHNF Trail #72: Big Hill Trails

BHNF Trail #72: Big Hill Trails

George S. Mickelson Trail

George S. Mickelson Trail

Cliff Shelf

Cliff Shelf

Big Sioux Recreation Area

Big Sioux Recreation Area

Harbach Park / Custer Trailhead

Harbach Park / Custer Trailhead

South Side and Valley View Trails at Devils Tower National Monument

South Side and Valley View Trails at Devils Tower National Monument

Custer State Park

Custer State Park

Lake Hiddenwood Recreation Area

Lake Hiddenwood Recreation Area

Lake Alvin Recreation Area

Lake Alvin Recreation Area

Pilot Knob Trailhead

Pilot Knob Trailhead

Lake Thompson Recreation Area

Lake Thompson Recreation Area

Dakota Point Trailhead

Dakota Point Trailhead

Spring Creek Trailhead

Spring Creek Trailhead

Oahe Downstream Recreation Area

Oahe Downstream Recreation Area

Lakota Lake Trailhead

Lakota Lake Trailhead