Mt. Hood Guide
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Trail

Dublin Lake Trail #401B

A spur in the Mark O. Hatfield Wilderness that descends from Tanner Butte Trail #401 to Dublin Lake, a little-used lake with three dispersed campsites.

Representative photo, not this exact spot. Photo: Mike Yak via Pexels · Pexels License

Dublin Lake Trail #401B is a spur in the Mark O. Hatfield Wilderness that leaves Tanner Butte Trail #401 at about 3,760 feet and drops down the ridge’s steep eastern slope to Dublin Lake, a small lake at roughly 3,520 feet.

Getting there takes some effort. From the Historic Columbia River Highway State Trail parking lot at I-84 exit 40, near Bonneville Dam, it is about 5.3 miles by forest road and Trail #401 to the start of this spur. The lake is well off the beaten path and sees little use, which makes it a quiet backpacking goal with three dispersed campsites.

Trail map & elevation

Length0.2 mi one way
Climb0 ft up, 256 ft down
Elevation3,522 to 3,784 ft
DifficultyEasy
3,5003,6503,8000 mi0.2 mi
Elevation (ft) along the trail
Download GPX Directions to the start
Trail class
Class 1 of 5
Typical grade
12-20%
Surface
Native material
Tread width
18-24 inches
Ranger district
Hood River

Connects to: Tanner Butte Trail #401

More about the Mark O. Hatfield Wilderness and its trails →

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

  1. From Portland, OR travel east on US Hwy 84 to Exit #40, signed for Bonneville Dam.
  2. Follow signs to the Historic Columbia River Highway State Trail (0.5 mile).
  3. Park in the large parking lot (recreation passes required.
  4. Overnite parking is permitted, but no camping).
  5. From Hood River, OR travel west on US Hwy 84 to Exit #40.
  6. Follow signs to the Historic Columbia River Highway State Trail (0.5 mile).
  7. Park in the large parking lot (recreation passes required and no overnight parking).

From the Forest Service

Rules and restrictions

Wilderness restrictions apply.

Details from the official Forest Service page, a public-domain U.S. government source.

Trails nearby

Tanner Butte Trail #401 11 mi 1,949 ft Very hard Tanner Cutoff Trail #448 4.2 mi 2,510 ft Hard Tanner Creek Trail #431 2.6 mi 439 ft Easy Eagle Creek Trail #440 (Columbia River Gorge) 18 mi 5,148 ft Very hard Moffett Creek Trail #430 6.6 mi 2,748 ft Hard Eagle Benson Trail #434 5.4 mi 3,390 ft Hard Tanner Springs Trail #401E 0.4 mi 103 ft Easy

Last checked November 4, 2026