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San Juan Range · Colorado 13er · No. 485 of the 13ers

North Slope from Rock Lake

Peters Peak, 13,138'

DifficultyClass 2
Round trip22.3 mi
Elevation gain6,300'
TrailheadHunchback Pass
Trailhead elevation11,800'
Less traffic, less margin

This describes the route on a dry summer day. Most 13ers see few people, so there may be no one along behind you. Check recent conditions the week you go, carry a map, tell someone your plan, and turn around when the day tells you to.

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Colorado 13er · North Slope from Rock Lake

Is it right for you?

Peters Peak stands west of Rock Lake in the Weminuche Wilderness, with a good view of the higher Mount Oso. No road comes close, so it is part of a backpack, usually over Hunchback Pass, though you can also come up from Vallecito Reservoir. Many people camp near Rock Lake for several days and climb the peaks around it. This is the Weminuche Wilderness, so plan a multi-day backpack and follow wilderness rules on camping, fires and group size.

From a camp just below Rock Lake you cut west from the lake outlet past a small pond to the saddle between Buffalo Peak and Peters. Then you climb south up a broad slope of tundra shelves and rock outcrops that gets steeper and rockier, reach the summit ridge and walk east to the split summit. It is an easy Class 2 and takes about 1.5 hours from camp.

The round trip is about 22.3 miles with 6,300 feet of gain from the trailhead. The camp below Rock Lake is about 9.9 miles in. From camp it is only about 2.5 miles and 1,500 feet round trip. UN 13,229 is reached by the connecting ridge from the summit.

Plan of the day

Start by

From camp, leave by 7 a.m.

Turnaround

Be on the summit by 11 a.m.

Crux

The steep, rocky upper slope.

Route-finding

Easy. Head west from the outlet to the Buffalo–Peters saddle, then straight south.

Water

Rock Creek and the lakes. Filter it.

This week on the summit

Conditions on the summit

Loading Fetching the forecast for 13,138'…
—Summit temp now
—Sustained wind
—Gusting to
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Tomorrow

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Day three

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Afternoon storm risk is the line that matters. Everything else is comfort. In summer, plan to be off the ridge before the build-up starts, not as it starts. Forecast for the summit point, adjusted for its elevation · data from Open-Meteo.

Getting there

Trailhead

Hunchback Pass

Find it on a map

This trailhead needs a high-clearance 4WD, and from Silverton the drive can last as long as 2.5 hours. From the northeast end of Silverton, take County Road 2 up the Animas about 4.2 miles to Howardsville. Turn right up Cunningham Gulch, then take the left fork onto the Stony Pass road. It climbs steeply over the pass and down the far side. You will ford Pole Creek, then turn right at a fork and ford the Rio Grande. Both fords are harder early in the summer. Then follow the Beartown road about 4 slow, rough miles past the old Beartown site and up a rocky, rutted stretch. The Hunchback Pass trailhead is about half a mile below Kite Lake, at roughly 11,800 feet, with limited parking.

You can also reach this area from Creede or Lake City by driving to Rio Grande Reservoir, but the road west of the reservoir has very rough sections. There is some camping near the trailhead and near the old Beartown site.

Before you go

Check these the week of your climb.

Official forecast

The National Weather Service forecast for the summit area, hour by hour. Look for thunderstorm chances and wind above treeline.

NWS point forecast →

Directions to the trailhead

Hunchback Pass. Road conditions near the trailhead change after storms. Check your clearance and have a backup plan for a lower lot.

Get directions →

Roads and highways

Closures, construction and winter conditions on the highways that get you there.

COtrip road conditions →

Closures and fire rules

Trail closures, fire bans and other alerts from the Forest Service in Colorado. For the latest on your trailhead, call the local ranger district.

Forest Service alerts →

Snow on the route?

From fall through early summer, any snow slope can slide. Check the avalanche forecast before you go.

Avalanche forecast →

Cell signal

Most trailheads and many summits have little or no signal. Check coverage near the trailhead and carry a satellite messenger or beacon if you can.

FCC coverage map →