Tolmie Peak Trail

Tolmie Peak Trail is a 6.5-mile out-and-back from Mowich Lake to Eunice Lake and a historic fire lookout above it. You follow forested trail before two steep miles that climb from the Wonderland Trail junction, first to the lake and then to Tolmie Peak. The route gains about 1,010 feet. Plan on roughly three to four hours, with time to stop at the lake and lookout. Eunice Lake makes a good shorter turnaround; the lookout is the reason to keep climbing if you want the wider mountain views.

Start at the signed Mowich Lake Trailhead by the parking area and follow the Wonderland Trail toward Tolmie Peak. The route crosses a short lakeshore connection, then stays under forest for about 1.25 miles to the junction. Watch for the marked turn onto Tolmie Peak Trail; the Wonderland Trail continues beyond it. The Tolmie route drops at first, then climbs steeply for about a mile to Eunice Lake. The out-and-back retraces this corridor, so the return gives you the same junction and forest stretch in reverse.

The lake sits in a subalpine basin edged by meadows and forest. Its shore and nearby meadow are fragile, so keep to the constructed path and rest on rocks rather than trampling the vegetation. This is the natural place to pause, but the lookout is still about a steep mile above the lake. If you are turning around here, you still get the lake and a close view of Rainier; continuing adds the strongest panorama.

From Eunice Lake the trail climbs a lava ridge to Tolmie Peak Lookout. The final mile is steep, and the summit is an exposed, rocky setting around the historic cabin. The lookout itself is kept locked, but visitors can stand outside and take in Rainier with Eunice Lake below. On a clear day, the panorama also reaches Mount St. Helens to the south, the Olympic Mountains to the west, and Mount Baker to the north. For a photo that explains the hike, frame Eunice Lake below Rainier from the ridge or lookout instead of taking only a close-up of the cabin.

The fire lookout was built by the Civilian Conservation Corps in 1933. It was used to spot smoke and lightning and report fires by telephone; after World War II, aerial observation took over much of that work. The structure is one of the few remaining fire lookouts in the park and is part of the Mount Rainier National Historic Landmark District. The peak is named for Dr. William Tolmie, who came to the region in 1833 to collect medicinal plants. The summit he climbed was long thought to be this one, but later research points instead to Hessong Rock in Spray Park.

Mowich Lake Road is a summer-only approach, typically open from mid-July into mid-October, and the area can stay snowbound outside that window. The Mowich Lake area has seasonal restrooms and picnic tables. Pets are prohibited on park trails. Treat any natural water before drinking, and stay on the built trail around Eunice Lake to protect the meadow.