Portland, OR: Tooth Rock & Wauna Viewpoint

This 4-mile lollipop loop explores a stretch of the Historic Columbia River Highway, a stately section of old-growth forest, and tops out 900' above the Columbia River for bird's-eye views of the eastern Gorge.
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This 4-mile lollipop loop explores a stretch of the Historic Columbia River Highway, a stately section of old-growth forest, and tops out 900' above the Columbia River for bird's-eye views of the eastern Gorge.

From the parking area, the first mile of the Tooth Rock trail heads east on an old section of the Historic Columbia River Highway. At Tooth Rock, the old highway contours around the large outcropping of volcanic rock on a stone viaduct, while the newer, multilane highway tunnels through the rock below. A viewpoint offers a wide panorama of Bonneville Dam, Beacon Rock and Table Mountain. Where the road comes to an end at a stone stairway, look for a dirt trail angling back uphill. After a short, moderate climb, the trail levels for for a leisurely walk amid shady forest.

At 0.4 mile from the beginning of the dirt track, look for a signed spur heading uphill to the left. This short track leads to old FR 777; to the left, look for a sign indicating Columbia River Trail #400 and head east. Follow the contouring trail for 0.4 mile to a signed fork, and bear right, heading uphill again. From here, the trail switchbacks through alternating forest and exposed rockfall slopes. Look and listen for pika among the rocks. Complete the final uphill stretch under power lines to Wauna Viewpoint with a concrete pylon and USGS benchmark. From the viewpoint, take in wide views over the Columbia River, from Beacon Rock to Cascade Locks and the lower portion of Eagle Creek Valley.

To return to your starting point, double back down to FR 777, and back down the spur to the lower east/west trail where you earlier deviated. Back at the junction, turn left (W) and follow the trail 0.4 mile to its connection with the Historic HIghway. From here, turn left (W) and finish the short stretch back to the parking area.

Mapped by Eli Boschetto Bosco Mountain Photo

Trail Facts

  • Distance: 6.7

Waypoints

WAU001

Location: 45.635044, -121.947985

Tooth Rock and Wauna Viewpoint trailhead at exit 40 off I-84 east.

WAU002

Location: 45.63939, -121.931795

At the end of the historic highway, pick up dirt trail that doubles back uphill.

WAU003

Location: 45.637139, -121.936513

Look for signed trail spur heading uphill to connect to FR 777.

WAU004

Location: 45.636201, -121.936015

At FR 777, turn left to continue east on Columbia River trail 400.

WAU005

Location: 45.637335, -121.931537

Turn right at signed spur for switchbacks up to Wauna Viewpoint.

WAU006

Location: 45.637048, -121.928112

Wauna Viewpoint, 900' above Columbia River.

Historic Highway

Location: 45.635077, -121.946697

Start the Tooth Rock and Wauna Viewpoint trails on the historic Columbia River Highway.

Columbia Highway

Location: 45.637207, -121.941376

Stroll along an old section of the historic Columbia River Highway to Tooth Rock.

Highway Viaduct

Location: 45.638587, -121.935625

The historic Columbia River Highway diverts around Tooth Rock on a stone viaduct.

Gorge Forest

Location: 45.637717, -121.933565

After leaving the historic highway, begin a moderate climb through shady woods to Wauna Viewpoint.

Trail Split

Location: 45.637327, -121.931419

For the Wauna Viewpoint, take the upper right fork at this split on Columbia River Trail #400.

Wauna Viewpoint

Location: 45.636307, -121.929488

The final stretch to Wauna Viewpoint is across exposed slopes under powerlines.

View Point

Location: 45.637117, -121.927857

The eastern Columbia River Gorge, Cascade Locks, and Mt. Adams (in the clouds) from atop Wauna Viewpoint.