Cascade Pass Trail

Cascade Pass Trail is a 7.4-mile out-and-back from Cascade Pass Trailhead to a high alpine saddle at about 5,390 feet, gaining roughly 1,700 feet. Allow about four to five hours, including a break at the pass. The climb is sustained rather than technical in snow-free conditions; the distance and repeated climbing make this a demanding moderate day, not a quick viewpoint stop. Leave pets at home; dogs are not allowed on the trail. Published figures vary slightly: an official one-way estimate of 3.7 miles comes to 7.4 miles round trip, while another trail measure and the mapped corridor are closer to 3.5–3.6 miles each way. The route map shows the approach once; on the ground, walk back the same way.

The first 2.7 miles climb through more than 30 switchbacks under cool forest. The grade keeps working, and that long stretch can feel repetitive; don’t expect open views right away. Waterfalls and their sound break up the forest walk. Near the final switchback, the trees thin and the route crosses open slopes and a broad rockfield. The last mile gives you the pass in view and finishes with a few bends across rougher ground. Keep your footing on the uneven rock, especially where the route leaves the shade.

The trail ends at a saddle between high peaks, not at a summit. From there, look across to Eldorado, Johannesburg, Magic, Mixup and McGregor peaks and their glaciers; the basin and ridgelines make a striking frame from the pass. This is the natural turnaround for the hike described here. Stop on durable ground rather than crushing the short alpine plants around the trail.

People have used Cascade Pass as a way through the rugged range since ancient times. Prospectors later searched the nearby basins for mineral claims, but the terrain made travel and hauling ore difficult; ambitious schemes around Horseshoe Basin never became a practical route. The saddle still works as a crossroads, but its branches lead to much longer trips.

The alpine summer is brief. Yellow glacier lilies follow snowmelt, and mountain heather can bloom pink; both grow in fragile ground, so stay on the tread, rock or snow when stopping. Pikas and marmots live around the rock slopes, while deer and sometimes black bears may use the meadows. Sightings vary, and wildlife should be left alone.

From Marblemount, Cascade River Road runs 23.1 miles from State Route 20 to the trailhead. It is paved for about the first 10 miles, then gravel, with a narrow and steep final section. The road is not suitable for sedans or low-clearance vehicles; RVs, large trailers and vehicles over 22 feet are prohibited. The designated loop lot has limited spaces and fills quickly on summer days, so arrive early and park only in marked areas. Bring food and water; no food service is listed at the trailhead or along this route.

The route north from the pass climbs Sahale Arm through meadows and talus toward Sahale Glacier; the eastbound trail drops toward Pelton and Horseshoe basins and eventually Stehekin. Those are separate, longer hikes, not part of this 7.4-mile round trip. Decide on the pass-only turnaround before you start if you are not prepared for a substantially longer day.