Climber's Access for Castle Rock & Nez Perce Peak
Castle Rock Trailhead
Drive south from Darby, MT on US 93 to the junction with Montana 473. MT 473 is also known as the West Fork Road. Turn right (southwest)
Drive 14.3 miles on the West Fork Road (from US 93)
, and turn right (southwest)
onto Nez Perce Road (468)
. The Nez Perce Road starts out paved, turns to gravel, then back to pavement before reaching Nez Perce Pass.
Once on the Nez Perce Road, travel 16 miles to Nez Perce Pass and the trailhead for Castle Rock.
You will find restroom facilities and an area for stock as well.
There is a large paved parking area with a helicopter pad in the middle. Don't park there!