Take CR 47 off of US 36 north of Pinewood Springs exactly 2 miles to a pullout. Hike NE downhill to the river (West fork of the Little Thompson River). Hike north up river. Right where the canyon and river make a sharp left, hike uphill NE. There is a downed tree above some low angle slabs to mark this spot. The boulders are only 5-7 minutes uphill on a vague trail. There is no real trail to follow, it's just adventure hiking. The riverbed is very easy with some nice sand spots and boulder hopping.