Peak · Olympic National Park
Sourdough Mountain
10.4 mi round trip4,913 ft gainVery hardDay hike: No permitOvernight: Reservation
Get alerts for this hikePermits and reservations
Day hikeNo permit
Day hikes need no permit, only the park entrance pass.
OvernightReservation
Every overnight stay needs a wilderness permit from Recreation.gov. Bear canisters are required at all wilderness camps (free loaners at Wilderness Information Centers).
Permit calendar
Summer permits releaseApril 15, 7 AM PT
Summer quota seasonMay 15 to October 15
Olympic National Park wilderness rules from the National Park Service. Quota areas include Seven Lakes Basin, Grand Valley, Royal Lake, the Ozette coast, and Enchanted Valley. Always confirm with the land manager before you go.
About the trail
Distance10.4 miRound trip, out and back
Elevation gain4,913 ftTotal climb, round trip
Summit4,600 ftFrom elevation data
Overview
Sourdough Mountain is a peak reached by a 10.4-mile round trip from Aurora Creek Trailhead. The route follows Aurora Creek Primitive Trail, then Aurora Ridge Trail to the summit.
Heads up: the last stretch to the top is off trail.
Photos from hikers
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What you need
Parking and passes
National park entrance fee: $30 per vehicle for 7 days, the $55 Olympic annual pass, or an America the Beautiful pass. The park does not take cash.
Buy an entrance passGetting there
The hike starts at Aurora Creek Trailhead. Save directions offline before you leave, since mountain roads often lose cell service.