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Mosquito Range · Colorado 13er · No. 574 of the 13ers

Southeast Ridge

Pennsylvania Mountain, 13,013'

Difficulty
Round trip5.3 mi
Elevation gain1,550'
TrailheadPennsylvania Mountain
Trailhead elevation11,710'

Conditions on the summit

Loading Fetching the forecast for 13,013'…
—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.

Colorado 13er · Southeast Ridge

Overview

Pennsylvania Mountain is one of the easiest 13ers anywhere, a tundra walk northwest of Fairplay. A cairned trail leads out of the trees and up the southeast ridge; once it fades, you follow the ridge over a 12,871-foot point and across a broad basin to the summit.

It is Class 1, nearly all grass and tundra with a few rocky patches. The only drama is the steep drop off the northwest side of the summit.

The round trip is about 5.3 miles with 1,550 feet of gain, usually 2 to 3 hours. It is a great first 13er, and you can walk the ridge west to Mount Evans B.

Plan of the day

Start by

By 7 a.m.

Turnaround

Be heading down by noon.

Crux

Nothing hard.

Route-finding

Follow the cairned trail to the bench near 11,900 feet, then follow the ridge west-northwest.

Water

None. Carry it.

Getting to the trailhead

Trailhead

Pennsylvania Mountain

Find it on a map

From the junction of US 285 and Highway 9 in Fairplay, drive north on Highway 9 for 3.1 miles and turn left on County Road 1. Reset your trip meter and go straight through any junctions. The road bends south and crosses Pennsylvania Creek.

Right after the creek, at 3.8 miles, turn right on Valley of the Sun Road (County Road 14A). Go west 1 mile to a switchback, go around it onto Bobcat Lane, and in about 900 feet turn left to stay on Bobcat Lane. At 6.3 miles, turn right on Mountain View Drive and follow it about 1.4 miles past private homes to the end of the road. Park there. The route is through a subdivision, so drive slowly and respect private property.

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

Pennsylvania Mountain. 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 →

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.