South Puyallup River Trail

Overview

A quiet, forested connector that punches way above its weight, the South Puyallup River Trail climbs through mature old-growth to the Wonderland Trail junction at South Puyallup River Camp. Expect a shady canopy, a roaring glacial river, and a geologic showstopper: the Colonnades—striking columnar-jointed volcanic formations just above the camp.

Route and Experience

From Round Pass, it’s roughly 1.6 miles one way (3.2 miles round trip) to the camp and Wonderland junction. The grade is generally gentle to moderate, with some steeper, rougher footing near the upper end. The tread mixes dirt with sustainable features—puncheons, turnpikes, check steps, and bridges—installed after flood-related reroutes. It’s an out-and-back unless you continue on the Wonderland.

Scenery is classic west-side Rainier: towering western redcedar, Douglas fir, western hemlock, yew, Pacific silver fir, western white pine, and noble fir—plus the rare Alaska yellow cedar sprinkled in. The South Puyallup River is a glacier-fed torrent, especially dramatic early season; many hikers drop to the rocky streambed for a breather and occasional peeks at Rainier’s summit.

Access and Logistics

Reaching the trailhead requires an approach on Westside Road. In summer, you can drive to Dry Creek parking (the first segment of Westside Road is open), then hike or bike another 1–1.2 miles up to Round Pass. Bicycles aren’t allowed on the trail itself, but there’s a bike rack at the trailhead. In winter, Westside Road is closed to vehicles but open for snowshoeing or skiing.

Best Time to Hike

May through November is your window. Snow can linger into late spring/early summer, and early season runoff can make river-adjacent areas lively. Wildflowers pop in summer (July–August is prime). Forest shade helps on warm days, but bring enough water—midday heat can sneak up on you.

Tips, Water, and Geology

• The Colonnades near camp are the marquee feature—textbook columnar jointing that tells a volcanic cooling story.
• Water is generally available near the camp; the most reliable source is a short walk south on the Wonderland Trail.
• Some maps misplace backcountry camps—double-check locations against official park resources before you go.
• After rain, expect slick tread and mud; bridges help, but footing can still be tricky.

Who Will Love It (and Who Won’t)

If you’re into big trees, river energy, and geologic oddities without big crowds, this is your lane. If you’re craving open alpine views, consider continuing beyond the camp on the Wonderland to Emerald Ridge or onward toward St. Andrews Park—those panoramas are beyond this trail’s scope.