Main Fork Dosewallips River Trail

The Main Fork Dosewallips River Trail is a 29.8-mile out-and-back from the historic Dose Ranger Station to Hayden Pass, 14.9 miles each way. It starts with an easy river-valley approach, then climbs into broad meadows and a high pass at 5,847 feet. This is a multi-day wilderness trip for hikers comfortable with long days and changing terrain, not a casual day hike; plan on two or three days and use the camps along the route. Published climbing figures range from about 4,250 to 4,800 feet. At Dose Forks, 1.4 miles in, stay right for the Main Fork; the West Fork trail leaves to the left.

From the old campground, a wide, gently graded tread winds through fir and hemlock forest, with creeks, footlogs, moss and ferns along the way. The Terrace Loop branches off near the start. At 2.5 miles, stay left at the Constance Pass junction; the Main Fork then skirts above the roaring river. A short view of Calypso Falls opens near Upper Twin Creek. Rhododendrons add pink blooms in late spring.

Burdick Creek, at about 5.5 miles, has one small tent site beside the trail. Deception Creek at 7.8 miles is a larger camp; its water carries fine glacial sediment from Mystery Basin and can clog filters. Beyond it, the grade steepens toward Gray Wolf Junction at 9.2 miles, where the trail leaves the forest for open meadows. Waist-high plants can soak your legs after rain or dew, and rodent holes make it worth watching your footing. Mounts Mystery and Deception rise behind you.

Bear Camp, at 10.9 miles, has a few sites, a shared bear wire, privy and shelter beside fireweed. Dose Meadows at 12.6 miles has another camp but no shelter and sits at the Lost and Cameron Pass junction. It is a useful place to pause and look back toward Mount Fromme; the meadow sign and rocky ridge make a distinctive view.

Past Dose Meadows, cross the bridge at the headwaters of the Dosewallips, pass through more forest, then follow switchbacks into the upper basin. The final climb narrows and steepens. A winter snow cornice can linger near the pass; Hayden Pass often does not melt out until mid-July, and snow may remain later. On snow-covered slopes, the park says ice-axe and self-arrest skills are necessary. At the 5,847-foot pass, Mount Olympus and the Bailey Range fill the western skyline, with Mount Anderson to the south.

Overnight wilderness trips require a permit, and bear canisters are required. Dogs are not allowed on the trail. There are no food services or potable-water taps on the route; treat stream water, and expect the camps to be basic. The long distance, sustained climb and seasonal snow make this a serious commitment even though the lower tread is broad and well graded.