Oregon · Hiking · Three Sisters Wilderness

Olallie Mountain

2.8 mi
round trip
1,046 ft
climb
5,700 ft
high point
Out and back
route
May–Sep
best months

Is Olallie Mountain open right now?

Closure in the area

There's a closure order in Willamette National Forest. It doesn't name Olallie Mountain, so check the source for the area it covers.

As of · Source: USFS · Willamette National Forest. Agencies don't list every closure — check before you go.

Olallie Mountain is a 2.8-mile out-and-back hike in Oregon's Three Sisters Wilderness, within the McKenzie River Ranger District of the Willamette National Forest. The trail climbs from about 5,010 feet to 5,700 feet, with a total gain of 1,046 feet, and the steepest stretch comes at about half a mile in, where the grade reaches 26 percent. The route is rated moderate, and the trail surface is natural. Horses are allowed, but bikes are not. The Forest Service manages the land, and the trail is open year-round. Plan on about 1.5 hours for the round trip. Summer is the most comfortable time to go. Typical averages from a nearby weather station at Wickiup Dam show July highs around 83°F with only about three wet days, while winter highs sit near 40°F. That station sits roughly 1,300 feet lower than the summit, so temperatures on the mountain run cooler. Nearby, Bear Flat Trail #3301 is about 1.2 miles away, and French Pete Trail #3311 is about 1.7 miles off. French Pete Creek, a canoeing spot, is about 2.8 miles away, and Frissell Crossing Campground is about 5.3 miles away.

Local outfitters

Not on Roamze yet. Their page has how to reach them.

  • Best time to go · May–Sep

    Best time to visit Olallie Mountain

    Best months: May–September. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

    1. Jan

      40° / 21°

      13 wet

    2. Feb

      43° / 22°

      11 wet

    3. Mar

      48° / 26°

      12 wet

    4. Apr

      54° / 30°

      10 wet

    5. May

      63° / 36°

      9 wet

    6. Jun

      71° / 42°

      6 wet

    7. Jul

      83° / 47°

      3 wet

    8. Aug

      82° / 46°

      3 wet

    9. Sep

      75° / 38°

      4 wet

    10. Oct

      62° / 31°

      8 wet

    11. Nov

      46° / 26°

      11 wet

    12. Dec

      38° / 21°

      13 wet

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Wickiup Dam, OR, 30.5 mi away at 4,358 ft. The station sits about 1,300 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Keep exploring — more trails worth the drive

Yankee Mountain Trail #3318Photo: Robert Ashworth from Bellingham, WA., USA, CC BY 2.0 (via Wikimedia Commons)

Yankee Mountain Trail #3318

~13 min drive

2.48-mile out-and-back hike with 3,675 ft gain in Oregon

Crossing WayPhoto: U.S. Forest Service- Pacific Northwest Region, Public domain (via Wikimedia Commons)

Crossing Way

~14 min drive

4.60-mile out-and-back trail in Oregon with 744 ft elevation gain.

HIKE

French Pete Trail #3311

~3 min drive

9.52-mile out-and-back trail in Oregon with 1,151 ft gain and 3,866 ft loss.

HIKE

Lowder Mountain

~5 min drive

1.38-mile out-and-back hike on Lowder Mountain in Oregon

McbeePhoto: U.S. Forest Service- Pacific Northwest Region, Public domain (via Wikimedia Commons)

Mcbee

~15 min drive

38.80-mile out-and-back trail in Oregon with 2,336 ft gain.

Walker CreekPhoto: Kane5187, CC BY-SA 4.0 (via Wikimedia Commons)

Walker Creek

~15 min drive

4.00-mile out-and-back trail in Oregon with 2,105 ft gain

HIKE

Rebel Creek Trail #3323

~6 min drive

7.75-mile out-and-back trail in Oregon with 7,732 ft elevation gain.

HIKE

South Fork

~9 min drive

4.2-mile out-and-back trail in Oregon with 147 ft of elevation gain.

HIKE

Bear Flat Trail #3301

~2 min drive

6.85-mile out-and-back trail in Oregon with 1,490 ft gain.

HIKE

Quaking Aspen

~5 min drive

3.40-mile out-and-back trail in Oregon with 702 ft gain.

Route details

Distance
2.8 mi round trip
Climbing
About 1,046 ft
Summit
5,710 ft
Difficulty
Moderate
Time
About 1.5 hours

Season

Season: Year-round.

Questions about this route

How long is the Olallie Mountain on Olallie Mountain?

About 2.8 mi round trip.

How much elevation gain is on the Olallie Mountain?

About 1,046 ft of climbing round trip.

How hard is the Olallie Mountain?

It is rated moderate.

How long does the Olallie Mountain take?

About 1.5 hours round trip.

When is the best time for the Olallie Mountain?

Year-round.

Conditions and forecast on Olallie Mountain

Daily highs and lows, wind and the chance of precipitation at the summit and route start for the next 7 days, from the Open-Meteo model.