South Spur
The South Spur is the standard and most-traveled route to Mount Adams' summit. Starting from Cold Springs Campground at 5,600 feet, the route follows an old road bed northward for approximately 2 miles to Morrison Creek around 6,500 feet, a reliable early-season water source and potential camp location. From Morrison Creek, the route transitions to increasingly rocky ridge terrain, ascending to Lunch Counter at 9,400 feet, a broad bench and the most popular overnight camp on the mountain.
The second day ascends the main snowfield on the south spur directly northeast, passing Pikers Peak (a false summit around 11,600–11,700 feet) before a final push northwest to the true summit. Depending on season and snow coverage, the upper route involves sustained snow climbing, loose volcanic rock, or a combination of both between Lunch Counter, Pikers Peak, and the summit. Depending on mapping source and snow route, the South Climb is roughly 12–14 miles round-trip with about 6,600–6,700 feet of gain. Most parties complete the climb over 2 days, though fit mountaineers may accomplish it as a strenuous long day.
Expect firm snow conditions in May and June, softer snow by midsummer, and early snows in September. Icy conditions can exist above 11,000 feet, particularly from consolidated boot steps in early morning or late season. Without significant snow on the upper route, the final summit approach becomes unpleasant scree and is not recommended.
Key Landmarks
- Cold Springs Trailhead & Campground (5,600 ft): Route start and primary parking area
- Morrison Creek (6,500 ft): Primary water source on Day 1
- Lunch Counter (9,400 ft): Established overnight camp and staging area
- Pikers Peak (~11,600–11,700 ft): Prominent false summit with wind exposure
warning Afternoon thunderstorms are common in summer on Mount Adams. Plan firm turnaround times, carry layers for rapid weather changes, and aim to descend before storm activity intensifies. The South Spur is best climbed when significant snow covers the route; without snow, the upper approach becomes loose, unpleasant scree. Glissading is a common descent on soft snow but requires self-arrest skill; avoid glissading on firm or icy snow where a fall cannot be arrested.