The Keyhole Route is the classic way up Longs Peak, a challenge for hundreds of Park visitors every summer. It's more than a simple hike and requires preparation and planning.
Boulder Field is the most frequently used base camp for a Longs Peak climb. 8 sites, reservation only, 5.9 miles from the Longs Peak Ranger Station and about 2 miles from the summit. Super views of the East Face and the Keyhole, 500 ft above.
The Keyhole is a landmark on the climb to Longs Peak, a notch in the stone flange joining Storm Peak and Longs, about .5 miles from the Boulder Field and 500 ft. above it. To the left of the Keyhole stands a stone hut erected to the memory of Agnes Vaille, who perished after accomplishing the first winter ascent.
The video on this page gives a good idea of the whole route and terrain you'll cross. More description is found under FAQ.