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Trail

Olallie Lake Trail #731

An easy 2.7-mile walk along the shore of Olallie Lake from Paul Dennis Campground to Camp Ten Campground, with side trails to nearby lakes.

Representative photo, not this exact spot. Photo: John Callery via Pexels ยท Pexels License

Easy walking and lake views make Olallie Lake Trail #731 a pleasant shoreline outing between two campgrounds sitting at the same 4,960-foot elevation: Paul Dennis on the north shore and Camp Ten on the south.

The trail leaves from Paul Dennis Campground’s south end, between sites 14 and 15. Side trails branch off along the way: Long Lake Trail #730 heads east at 0.8 mile, and Monolallie Lake Trail #732, a link to Monon Lake Trail #729, leaves at 1.1 miles. At 1.3 miles you walk through Peninsula Campground on its road to the group site, then follow the shore again for the last 1.4 miles to Camp Ten. A few short stretches use the road.

Trail map & elevation

Length2.4 mi one way
Climb52 ft up, 58 ft down
Elevation4,940 to 4,962 ft
DifficultyEasy
4,9005,0005,1000 mi2.5 mi
Elevation (ft) along the trail
Download GPX Directions to the start
Trail class
Class 3 of 5
Typical grade
12-20%
Surface
Native material
Tread width
18-24 inches
Ranger district
Clackamas River

Connects to: Monolallie Trail #732

Line, length and trail class: U.S. Forest Service trail data. Elevation: USGS 3D Elevation Program. Difficulty is our estimate for hiking it out and back (once around for a loop), from distance and total climb. Lines can be off by a few hundred feet; carry a real map and check the official page for closures.

Getting there

From Portland, OR

  1. Travel east on US Hwy 26 to Sandy.
  2. Turn right (southwest) on OR Hwy 211 and travel 6.1 miles to OR Hwy 224.
  3. Turn left (southeast) on OR Hwy 224 and travel 30.6 miles to Forest Road 46.
  4. Turn right on Forest Road 46 and travel 14.8 miles to Forest Road 42.
  5. Turn left Forest Road 42 and travel 4.3 miles to Forest Road 4220.
  6. Turn right (south) on Forest Road 4220 and travel 11.9 miles to Forest Road 4220-170 (Paul Dennis Campground Road).
  7. Turn left on 4220-170 and follow it 0.4 mile to the parking area in the campground.
  8. The trail begins at the south end of Paul Dennis campground between campsites #14 and #15.

Trails nearby

Monolallie Trail #732 0.4 mi round trip 22 ft Easy Monon Lake Trail #729 4.2 mi round trip 10 ft Easy Pacific Crest Trail (Clackamas RD) 22.8 mi round trip 3,032 ft Very hard Red Lake Trail #719 10.8 mi round trip 2,279 ft Very hard Timber Lake Trail #733 1.2 mi round trip 84 ft Easy Top Lake Trail #725 1 mi round trip 144 ft Easy Fish Lake Trail #717 5.4 mi round trip 845 ft Moderate Lodgepole Trail #706 8.8 mi round trip 1,648 ft Hard Ruddy Hill Trail #714 0.6 mi round trip 373 ft Easy Potato Butte Trail #719A 1.2 mi round trip 447 ft Easy

Last checked November 4, 2026