Trails that ascend Longs Peak include
the East Longs Peak Trail, the Longs Peak Trail, the Keyhole Route, Clark's Arrow and the Shelf Trail. Only some technical climbing is required to reach the summit of Longs Peak during the summer season, which typically runs from mid July through early September. Outside of this window the popular "Keyhole" route is still open; however, its rating is upgraded to all "technical" as treacherous ice formation and snow fall necessitates the use of specialized climbing equipment including, at a minimum,
crampons and an
ice axe. It is one of the most difficult
Class 3 fourteener scrambles in Colorado. The hike from the trailhead to the summit is 8.4 miles (13.5 km) each way, with a total elevation gain of 4,875 feet. Most hikers begin before dawn in order to reach the summit and return below the
tree line before frequent afternoon
thunderstorms bring a risk of
lightning strikes, often the most frequent cause of death on Colorado fourteeners most years. The most difficult portion of the hike begins at the Boulder Field, 6.4 miles (10 km) into the hike. After scrambling over the boulders, hikers reach the Keyhole at 6.7 miles (10.5 km). The following quarter of a mile involves a scramble along a catwalk of narrow ledges, many of which may have nearly sheer cliffs of 1,000 feet (305 m) or more just off the edge. The next portion of the hike includes climbing over 600 vertical feet (183 m) up 'the Trough' before reaching the most exposed section of the hike, the Narrows. Just beyond the Narrows, the Notch signifies the beginning of the Homestretch, a steep climb up a shallow couloir, following seams of granite up a face approaching vertical to reach the football field-sized, flat summit. It is possible to camp out overnight in the Boulder Field (permit required) which makes for a less arduous two-day hike. However, this is fairly exposed to the elements and requires an ascent of 3300 ft over 6.4 miles with an overnight pack. Fifty-nine people have died climbing or hiking Longs Peak. According to the National Park Service, two people, on average, die every year attempting to climb the mountain. Less experienced mountaineers are encouraged to use a guide for this summit to mitigate risk and increase the probability of a summit. For hikers who do not wish to climb to the summit, there are less-involved hikes on the peak as well. Peacock Pool and Chasm Lake are popular hiking destinations and follow well-maintained trails. It is also rewarding to hike just to the Boulder Field, the Keyhole, or the seldom-visited Chasm View—the ridge between Mount Lady Washington and the east face of Longs Peak. Camping is available at the Boulder Field and also on the lower portions of the mountain, such as Goblin's Forest next to the stream at the bottom. Technical climbers, with the correct permit, are allowed to use sites at the base of the East Face and at Chasm View. It is also possible to camp to the south of the mountain at Sand Beach Lake. In addition to the standard "Keyhole" route, there are more serious and more technical climbs on Longs Peak. Climbers should seek qualified instruction; deaths on Longs Peak are an annual occurrence. Some of the more common routes are, in approximate order of popularity, • North Face Cables route: This follows the Keyhole route to the Boulder Field, then ascends the North Face of the peak. It requires one or two pitches of low-5th class climbing, and is often downclimbed or rappelled by technical climbers since it is one of the fastest ways to ascend or descend the peak. In August of 1925, Walter Kiener submitted a proposal for fixed metal cables to be installed on this route to assist climbers, similar to systems in the
Alps. The plan was approved by park superintendent Roger Toll and installed under the direction of park ranger Jack Moomaw. Two sections of 3/4 inch steel cable were installed (160 feet for the lower section and 31 feet for the upper section) using steel eye bolts drilled into the rocks. The cables were removed in 1973 due to concerns about their appropriateness, but several of the bolts remain and are used as rappel anchors. • Kieners Route: A traditional mountaineering climb that involves a climb of Lambs Slide (named after Reverend
Elkanah Lamb who unintentionally slid down much of the route in 1871 It is also possible to ascend to the saddle via Lambs Slide. The 4th class Clark's Arrow route is also accessible via the Loft, ascending from the West side of the mountain, and later connecting with the Keyhole Route. • via the East Face: The East Face is the steep, 1,000 + foot (305 + m) wall that includes the Diamond and the Lower East Face. All climbs here are technical, from 5.10 to 5.13. It is also possible to ascend to the (climber's) left of the Diamond face proper. The routes on the right side of the Diamond are often
aid climbed, and may require spending the night on the wall; the rock here can be very wet. Routes on the left side of the Diamond are usually
free climbed. Only qualified climbers should attempt climbs on this face, and they should take into consideration the
effects of altitude and alpine conditions in addition to the
difficulty rating. • via the Notch Couloir: This is a technical climb involving rock climbing and, at some times of year,
ice climbing. The Notch Couloir is to the (climber's) left of the Diamond face. ==Historical names==