Three Forks Trail

Start at the back of Deer Park Campground and drop fast off Blue Mountain toward the confluence of Grand Creek, Cameron Creek, and the Gray Wolf River. This is a classic Olympic National Park “top-to-bottom” sampler: open subalpine meadows and big mountain views up high, transitioning into cool, moss-draped old-growth as you descend.

Plan on about 8.5 miles total, out-and-back, with roughly 3,300 feet of elevation loss—and the same gain on the return. The upper ridge can be hot and exposed; then the grade eases somewhat as you enter deep forest. Near the valley floor, log bridges get you over the creeks to Three Forks Camp, where you’ll find a shelter, privy, and tent sites beside rushing water.

This hike is strenuous. The descent pounds knees; the climb back is a grinder. The trail is generally dry until the bottom, so carry plenty of water for the way down and the entire climb out, then filter at the rivers. Trekking poles are knee savers here. No pets.

Overnighters need a wilderness camping permit, and proper food storage is required. Day hikers don’t need a permit. From Three Forks, strong parties can continue deeper into the backcountry on routes like Cameron Creek.

Best time to hike: When Deer Park Road is open and dry—typically mid/late June through early fall. Wildflowers dot the meadows in late June and July; early fall brings crisp air and color. Expect more company in peak season; start early for cooler temps and quieter trail. Road access is a factor: Deer Park Road is narrow, winding dirt with limited turnouts and seasonal closure due to snow.

Worth it? If you’re fit and want maximum scenery per mile—alpine views up high, a lush river valley below—yes. If you hate steep out-and-backs or are unsure about the drive to Deer Park, pick something gentler. For anglers, this corridor is also popular for fishing at the bottom.