Fees are charged May 1st - October 31st.
Pumphouse is approximately 10 miles from Highway 9 on Grand County #1 (Trough Road). From Kremmling take Hwy 9 south about 1 mile to Grand County 1 (Trough Road). Go west on Grand County 1 (Trough Road) for 10 miles, and turn right onto Pumphouse access road.
Fees are charged May 1st - October 31st. Day Use: $5 per vehicle per day (Valid at Pumphouse, Radium, State Bridge, and Two Bridges). Season pass: $20 (available from Kremmling Field Office). Camping Fees: (Includes day pass for one vehicle) $10/night at Pumphouse; $6/night at Radium; $30/night for Group Campsites at Pumphouse and Radium. America the Beautiful passes (Annual Pass, Military Pass, Senior Pass, Access Pass and Volunteer Pass) allow FREE day use. America the Beautiful Passes (Annual, Military, and Volunteer) have to pay Full price for camping. (Senior and Access) pay half price for camping within individual sites (not group sites).