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.
Alternate route · West Ridge
Overview
The West Ridge of Mount Ouray is a short, off-trail Class 2 hike that starts from Marshall Pass. You climb north through the forest, reach a ridge near 12,000 feet, then follow it around and up the long west ridge to the summit. It is about 6 miles round trip with roughly 3,300 feet of gain.
It suits hikers who are comfortable on tundra and rock without a clear trail the whole way. There are only faint path segments on the ridge. The last 1,300 feet are steeper, with a mix of rock and grass, but the hands-on moves stay easy if you pick your line well.
Plan on 5 to 7 hours car to car. You are above treeline for most of the day, on an open ridge with no cover, so an early start matters.
Plan of the day
Start by
By 6 a.m. You leave the trees after about a mile and stay on open ridge until you come back down.
Turnaround
If you are not at the base of the final steep pitch by about 10:30 a.m., or storms are building, turn back. The last 1,300 feet take longer than they look.
Crux
The final steep pitch on the west ridge, from about 12,700 feet to the summit. Near the top, a band of pale rock is best passed on the left.
Route-finding
Moderate. There is no single trail. Head north through the trees to treeline, reach the ridge, then turn left and stay near the crest. The summit is in view for most of the upper route.
Water
None dependable on the route. Carry all you need, about 2 to 3 liters.
From the junction of U.S. 50 and U.S. 285 in Poncha Springs, go south on U.S. 285 for about 5.5 miles. Turn right onto the dirt Marshall Pass road and follow signs for Marshall Pass. The main trailhead is about 13.5 miles up this road.
You can also park at the end of a short spur road just north of the main road, about 0.1 mile short of the pass. Starting there saves a little walking and there is a toilet. The main road is dirt and is usually fine for most cars in dry summer weather.
RoadTundraRidgeTalus and screeExposed to lightning
The line is elevation, the band underneath is the ground, and the numbered dots match the steps below. Mileage and elevations are approximate.
1
Marshall Pass trailhead 10,840' · 0 mi
From the main parking area, walk east a short way down the road. Turn left onto the spur road on the north side. If you parked at the end of the spur, start there instead.
2
Old cabin on the spur road 10,830' · 0.2 mi
Walk past an old cabin near the end of the spur. Turn right and start north up into the trees. There may be no clear trail, so keep a steady northward line.
3
Treeline 11,800' · 1.1 mi
The forest thins out near 11,800 feet. Keep going up easy, open slopes toward the ridge crest above you.
Watch for: From here you are exposed to lightning. Check the sky.
4
Reach the ridge 12,000' · 1.4 mi
You gain the ridge near 12,000 feet and can see the rest of the route. The summit is to the northeast, but do not head straight for it. Go left and head north along the ridge.
5
Rocky bump 12,500' · 1.8 mi
Near 12,500 feet, go up and over a small rocky high point on the ridge. Look for faint trail bits. If you lose them, just stay on the crest.
6
West ridge, west end 12,550' · 2 mi
Reach the far west end of the mountain's west ridge. Turn east here. The summit is plain to see ahead.
7
Small bumps on the ridge 12,700' · 2.4 mi
Walk east over a couple of low bumps. The going is easy. You arrive at the base of the final, steeper climb of about 1,300 feet.
Watch for: Judge your time and the weather here before starting the last pitch.
8
Steep upper ridge 13,200' · 2.7 mi
Start up the steeper ridge. The ground mixes loose rock and grassy patches. Stay close to the crest where the footing is best.
Watch for: Watch for loose rock, and do not knock rocks onto people below.
9
Band of pale rock 13,450' · 2.85 mi
A band of pale rock crosses the route near the top of the ridge. Go around it on the left side, then work back up to the crest near 13,500 feet.
10
Summit of Mount Ouray 13,979' · 3 mi
Follow the ridge up the last stretch to the top. The summit has wide views over the southern Sawatch Range.
Getting down
Go back the way you came. Descend the west ridge with care on the steep upper section, then head west over the small bumps until the ridge ends. Turn left (south) and follow the ridge back down to about 12,000 feet. From there, head south down open slopes to treeline and through the trees to the spur road near the cabin. It is easy to drift off line in the forest, so keep checking your direction.
If things go wrong
The quickest way off is back along the ridge the way you came, then south to the trees. The final steep pitch has no easy escape, so decide before you start it. If a storm hits, get off the high ridge fast and head for treeline. If someone is hurt or sick from the altitude, going down is the best help. Call 911 if you have signal.
This describes the route in its usual season. Distances and elevations are close estimates for planning. Snow, ice, rockfall, a washed-out road or an afternoon storm can make it a very different climb. Check recent conditions the week you go and turn around when the day tells you to.