Longs Peak Trail
What to Expect
Safety Advisory
The route above the Keyhole involves Class 3 scrambling with fatal exposure. Multiple deaths occur on this peak; the Narrows traverse is roughly two feet wide with a thousand-foot drop. If you haven't scrambled on exposed terrain before, this is not the place to learn.
Altitude sickness is a serious concern — the trailhead sits above 9,400 feet and the summit tops 14,200. Spend at least two days acclimatizing in Estes Park before attempting the climb. Turn around immediately if you develop a severe headache, nausea, or confusion.
Weather windows are brutally short. Thunderstorms build fast above treeline, often by late morning in July and August. If you see clouds stacking to the west or hear distant thunder, retreat below the Keyhole immediately — the exposed ridge is the worst place in Colorado to be during lightning.
Trail Details
Pro Tips
Start between 2:00 and 3:00 AM from the Longs Peak Trailhead. This isn't optional macho culture — afternoon lightning above treeline is genuinely dangerous, and you need to be off the summit by noon at the latest.
The trailhead parking lot fills by 3:00 AM on summer weekends. If you arrive and it's full, don't park on the road — rangers ticket aggressively. Plan a weekday attempt or arrive before 2:00 AM.
Bring a headlamp with fresh batteries (and a backup), plus trekking poles for the lower section. Ditch the poles at the Boulder Field and stash them behind a rock — you'll need both hands free for the scramble sections above the Keyhole.
