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- Osceola Peak
8,582 ft · Cascade Range, Washington
Osceola Peak
Osceola Peak is an 8,582 ft peak in the Cascade Range, Washington. The standard route is the Southwest Slopes from Lake Doris: 26 mi, 5,900 ft of gain, Class 2.
Osceola Peak at a glance
- Elevation8,582 ft2,615 m
- RouteSouthwest Slopes from Lake DorisClass 2
- Distance26 mi5,900 ft gain
- Time2 – 3 daysHard effort
- SeasonJul – Sep
- RangeCascade RangeWashington
Climbing the Southwest Slopes from Lake Doris
From Mazama, take Harts Pass Road (FR 5400, narrow, no trailers) past Harts Pass to the Slate Pass trailhead. Descend to the Middle Fork Pasayten trail and follow it about 9 miles to the Berk Creek junction, then switchback past Freds Lake over Rolo Pass to camp at Lake Doris. Leave the trail at the stream just before the lake, climb through open forest, and slog up the endless southwest talus slope, Class 2 with wobbly blocks. Cliffs guard the other sides. The valley burned in 2026, so check trail status first. Fill out the free wilderness permit. Circuit option: Osceola, Carru and Lago, 37 mi / 10,500 ft.
Gear and hazards
What to bring
Backpack (55–75 L)
Hiking Boots
Water
Offline Maps
Headlamp
Satellite Communicator
Whistle
Sunglasses
Sunscreen
Sun Hat
Midlayer
Insulated Jacket
Hardshell Jacket
Warm Hat
Buff
Midweight Gloves
Trekking Poles
GPS Device
Power Bank
Water Filter
First-Aid Kit
Emergency Bivy
What to watch for
- Loose rock
- Remote location
- Spotty cell reception
- High winds
Quests with Osceola Peak
Washington 100 HighestFrequently asked questions
How tall is Osceola Peak?
Osceola Peak is 8,582 feet (2,615 m) tall. It is in the Cascade Range, Washington.
How hard is it to hike Osceola Peak?
The Southwest Slopes from Lake Doris is Class 2, which means off-trail hiking with some use of your hands for balance. Yak rates the overall effort hard: 26 miles with 5,900 feet of elevation gain.
How many days does it take to climb Osceola Peak?
Most climbers plan 2 – 3 days for the Southwest Slopes from Lake Doris, with at least one night on the mountain.
Can a beginner hike Osceola Peak?
The Southwest Slopes from Lake Doris needs no climbing skills, but it is a hard trip: 26 miles with 5,900 feet of elevation gain. Build up on shorter hikes first, start early and carry plenty of water and layers.
When is the best time to hike Osceola Peak?
The usual hiking window is July to September. Outside it, expect snow, storms or closed access, and check the summit forecast before you go.
Climb Osceola Peak with Yak
Plan your route on a topo map, check the summit forecast, then log your climb and see what is left on your list