Pick a Peak - list of mountains Home

Pettingell Peak

4 104 m / 13,465 ft United States

Alternative names
Pettingell Peak
Pettingell Peak rises to 4,104 m in the Front Range of Colorado, within the Indian Peaks Wilderness of the Rocky Mountains. It is a rugged alpine summit known for steep slopes, loose rock, and broad views toward nearby high peaks and glacial basins. The mountain is not a casual hiking objective. Most visitors come for a demanding off-trail climb, alpine scrambling, and a quiet backcountry setting. Access is typically from the Brainard Lake Recreation Area, with the approach shaped by weather, snow conditions, and route-finding ability. Pettingell Peak is best suited to experienced hikers and mountaineers who are comfortable with exposure, navigation, and changing mountain conditions. In summer, the area offers wildflower meadows and clear lakes below the summit; in early season, snow and ice can make the climb significantly harder. Because of its remote feel and technical character, Pettingell Peak attracts climbers seeking a less crowded alpine experience. It is a good choice for those looking to combine a scenic wilderness approach with a serious high-elevation ascent in the central Colorado Rockies.

Planning this year

No users yet

Planning this month

No users yet

Climbed

No users yet

Want to go

No users yet

Attempted

No users yet

Nearby mountains

Highest mountains in the range

Popular trekking routes

There are no true trekking routes to the summit of Pettingell Peak in the usual sense; most approaches are long alpine hikes that turn into scrambling near the top. The most common line begins at Brainard Lake and follows established trails toward Long Lake or Mitchell Lake, then leaves the trail for talus, tundra, and steep slopes. These approaches are scenic but demanding, with route-finding required above treeline. Expect a full-day outing, strong elevation gain, and little protection from weather. The terrain is best for fit hikers with backcountry experience.

Popular mountaineering routes

The standard ascent is usually described as a non-technical to moderate alpine climb, depending on season and exact line chosen. Climbers often use the southeast or east-side slopes, where the route involves steep scree, loose rock, and short scrambling sections near the summit ridge. In dry late-summer conditions, the climb is mostly a strenuous Class 2 to easy Class 3 effort; earlier in the year, snow can raise the difficulty and require traction tools and an ice axe. The mountain is valued for its remote feel, solid views, and a more serious challenge than a simple hike.

Start of the route

The usual starting point is the Brainard Lake Recreation Area, northwest of Boulder, with the nearest access communities including Ward and Allenspark. From there, climbers typically begin on trails leading toward Long Lake, Mitchell Lake, or nearby trail junctions before heading off-trail toward the peak. Reaching the trailhead is easiest by car via Colorado State Highway 72 and Brainard Lake Road, though seasonal closures and parking limits are common. A high-clearance vehicle is not usually required, but arriving early is important in summer.

Local Guides, tour agencies

Guided climbs in this area are usually arranged through established Colorado mountain guiding companies rather than local village operators. Well-known providers include Colorado Mountain School, Alpine Ascents International, and RMI Expeditions, which may offer custom alpine instruction or private guiding in the Front Range. Prices vary widely by group size, season, and route complexity, but private day guiding in the region often starts around USD 400 to 800 per person, while custom technical instruction can cost more. Always confirm current rates, permit rules, and guide qualifications before booking.

Best time for ascension

The best time to climb Pettingell Peak is usually from mid-July through September, when snow has mostly melted from the standard summer lines and trail access is more reliable. August and early September often provide the most stable conditions, with longer daylight and lower avalanche risk. Early summer can still hold steep snowfields, especially on shaded aspects, while autumn brings colder temperatures and a higher chance of early storms. Afternoon thunderstorms are common in Colorado during summer, so an early start is strongly recommended. Winter ascents are possible only for highly experienced mountaineers.

Equipment

For a summer ascent, carry sturdy hiking boots, layered clothing, gloves, a helmet, plenty of water, food, sun protection, and a map or GPS device. Trekking poles can help on the approach, but they may be less useful on steep talus. If snow remains on the route, add an ice axe, traction devices, and the skills to use them safely. Because the mountain is remote and the descent can be loose, a helmet is a smart choice even on non-technical terrain. Weather changes quickly at altitude, so pack insulation and rain protection regardless of forecast.

Wildlife around Pettingell Peak

The slopes and forests around Pettingell Peak support typical Rocky Mountain wildlife. Hikers may see mule deer, elk, yellow-bellied marmots, pikas, and occasionally bighorn sheep in higher terrain. Black bears are present in the broader region, though sightings are less common near exposed alpine zones. Birds such as Clark’s nutcrackers, ptarmigan, and hawks are also part of the mountain environment. Wildlife is most active in early morning and evening, so keep a respectful distance, store food securely, and avoid feeding animals. In summer, wildflowers attract pollinators across the meadows below treeline.

Travel tips

Start early to avoid afternoon storms and to secure parking at the trailhead. Check current access rules for the Brainard Lake Recreation Area, since reservations, fees, or seasonal road closures may apply. Carry enough water for a long, dry approach and be prepared for route-finding once you leave the maintained trail. Cell coverage is unreliable in the basin and on the mountain, so do not depend on it for navigation or emergencies. Tell someone your plan before leaving, and turn back if snow, lightning, or loose rock make the route unsafe. A calm pace helps with altitude and reduces fatigue.

Interesting Facts

Pettingell Peak is one of several high summits in the Indian Peaks Wilderness that offer a true alpine experience without requiring a technical rope on the standard line in good summer conditions. Its elevation of 4,104 m places it well above treeline, so the summit environment is stark, windy, and exposed. The peak is named for George Pettingell, an early Colorado settler and surveyor. From the top, climbers can often see surrounding peaks, glacial basins, and a chain of lakes that make the approach especially scenic.

FAQ

How long does it take to climb Pettingell Peak? Most climbers need about 6 to 10 hours round trip, depending on fitness, route choice, and conditions.

How long does it take to approach Pettingell Peak? The approach from the trailhead to the base of the climb usually takes 2 to 4 hours one way.

Is there cell service and internet on the Pettingell Peak? Coverage is limited and unreliable; do not count on stable cell service or internet access.

How difficult is it to climb Pettingell Peak? It is a strenuous alpine climb with loose rock and route-finding, generally harder than a standard hike.

Can beginners hike Pettingell Peak? Beginners should not attempt the summit without mountain experience, good navigation skills, and favorable conditions.

How many people climb Pettingell Peak? It is not a heavily trafficked peak; only a modest number of climbers attempt it each season compared with more famous Colorado summits.

Posts about mountain

No posts yet.

Reviews

No reviews yet. Be the first!

Add a review