A challenging high-elevation ridgeline adventure featuring rapid weather shifts, glacier travel considerations, and breathtaking alpine vistas. This route demands experience, proper gear, and meticulous planning.
Begin at the North Trailhead (8,200 ft) with a steady climb through subalpine forest. The first 4 miles follow a well-maintained trail, but conditions become more challenging as you gain elevation. Around mile 6, you'll encounter the first exposed ridgeline section requiring careful footing.
⚠️ Critical Note:
Water is scarce after mile 5. Fill all containers at the last reliable stream (marked on map). The next guaranteed water source is at High Camp, 11.2 miles in.
High Camp (9,800 ft) offers limited tent sites. Arrive early to secure a spot, especially during peak season. This camp provides your last opportunity for reliable water before the challenging Day 2 ascent. For essential water treatment strategies, review our comprehensive guide.
This is the crux of the route. Start before dawn (recommended departure: 5:00 AM) to maximize daylight and avoid afternoon thunderstorms. The ascent to the summit involves 2,600 feet of elevation gain over 4.5 miles, including sections of Class 2-3 scrambling.
🚨 Weather Alert:
Afternoon storms are common. If you haven't reached the summit by 1:00 PM, consider turning back. Lightning risk on exposed ridges is extreme. Monitor conditions using our weather planning toolkit.
The ridge traverse after the summit requires careful navigation. Snowfields may persist into late summer—crampons are optional but recommended if you're attempting this route before mid-August. The descent to Middle Camp (10,400 ft) is steep and requires concentration.
Middle Camp has no water source. You must carry all water from High Camp or melt snow (if available). This is where proper shelter selection becomes critical, as wind exposure is significant.
Continue along the ridgeline with spectacular views in all directions. The route alternates between exposed ridges and protected valleys. Navigation becomes more complex here—multiple false summits can lead to route-finding errors.
At mile 6.5, you'll reach the second major summit (11,920 ft). The descent from here is gradual but long. Water becomes available again at mile 9.2 (seasonal stream—verify before relying on it). This is your first reliable water source since High Camp.
Low Camp (9,100 ft) offers better camping options and reliable water. This is an ideal spot to rest and recover before the final day. Consider practicing your navigation skills here, as the terrain becomes more forgiving.
The final day is mostly downhill, but don't underestimate the distance. The trail descends through alpine meadows, subalpine forest, and finally into the valley. Your knees will thank you for trekking poles on this section.
The South Trailhead (8,400 ft) marks the end of your traverse. Arrange transportation in advance, as this is a different location from your starting point. For comprehensive route planning strategies, consult our detailed planning guide.
This route is extremely weather-dependent. Afternoon thunderstorms are common from July through September. Lightning strikes on exposed ridges are a real danger. Monitor forecasts using multiple sources and have a clear turnaround time.
Wind speeds can exceed 50 mph on the ridgeline, even on clear days. Ensure your shelter can handle high winds, and be prepared to hunker down if conditions deteriorate. For detailed weather planning, see our weather risk assessment guide.
Most of this route is above 10,000 feet, with significant time spent above 12,000 feet. Altitude sickness is a real concern. Acclimatize properly before attempting this route. If you experience symptoms of AMS (Acute Mountain Sickness), descend immediately. The only treatment is to go lower.
There are three primary bailout points along the route:
Always have a contingency plan and share your itinerary with someone who can initiate a search if you don't check in as planned.
Backcountry Permit Required: Permits must be obtained in advance through the National Park Service reservation system. Peak season (July 15 - September 15) permits are highly competitive and often sell out months in advance.
Group Size Limit: Maximum 8 people per group. Larger groups must split into separate parties with separate permits.
Camping Restrictions: Camping is only allowed at designated sites (High Camp, Middle Camp, Low Camp). No dispersed camping permitted. Bear canisters are required for all food storage.
Leave No Trace: This is a pristine alpine environment. Pack out all trash, including used toilet paper. Human waste must be buried at least 6 inches deep and 200 feet from water sources.