Eagle Creek Trail #440 to Tunnel Falls

Eagle Creek Trail #440 to Tunnel Falls is an 11.7-mile out-and-back from the road-end Eagle Creek Trailhead, climbing above the creek’s basalt gorge to a tunnel cut behind a 172-foot waterfall. The mapped line follows the 5.85-mile trail corridor once; the distance includes hiking it back to the start. Allow about seven hours, with roughly 1,600–1,900 feet of climbing and time for the falls. This is a great pick if you’re steady on exposed ground and want the gorge beyond the busy first stretch. Punch Bowl Falls, High Bridge, smaller cascades and the final waterfall make the miles feel different, but you repeat the cliffside sections on the return.

The trail climbs above Eagle Creek within its first half mile. In places the tread narrows beside steep drops, with cables fixed to the cliff for handholds. The path is rocky and can be slick, so this is a poor fit if heights make you freeze or you need a broad, forgiving trail.

At about 1.9 miles, a signed spur drops roughly 300 feet to Lower Punch Bowl Falls. The main trail continues to an overlook about a quarter mile later, where you look down at the falls from above. Reaching the larger pool upstream means scrambling along the shore or swimming; that is a separate, much less controlled outing, not part of this route. Beyond the overlook, Eagle Creek slips out of view and then opens back into the gorge. Loowit Falls drops down the far bank. High Bridge crosses a narrow channel high above the water; the approach is rocky and exposed, with a wall cable alongside the ledge.

After the bridge, the trail returns toward the creek. At about 4.5 miles, Four and a Half Mile Bridge crosses Eagle Creek close to the water. A few miles of camps and tributary crossings follow; look across Wy’East Creek for its ribbon-like waterfall. Past the wilderness boundary, a free permit is required. Two broad talus slopes and the rocky section called the Potholes lead to Tunnel Falls.

The 172-foot cascade drops into a bowl of columnar basalt. Trail builders cut a passage behind the water, and the path curves around the falls so you can see it from several angles. Keep to the tread and hold the cable through the tunnel. This is the turnaround; the return uses the same route, including the exposed ledges and bridge approaches. If the first narrow sections are already wearing on you, High Bridge is a sensible shorter destination instead.

From Portland, take eastbound I-84 Exit 41 just after the tunnel and follow signs to Eagle Creek Trailhead. From Cascade Locks, there is no westbound Exit 41: continue to Exit 40, then get back onto eastbound I-84 for Exit 41. The trail starts at the road’s end. Spaces there are limited; if the lot is full, the larger fish-hatchery lot on the access road adds about a mile round trip. A recreation pass or day-use fee is required. No potable water is available at the trailhead, and the free wilderness permit is self-issued where the route enters Mark O. Hatfield Wilderness, around mile five.

Dogs are allowed but must stay on a leash no longer than six feet. The narrow drops make this a hard route for pets, even with cables. Cascade Locks has restaurants and brewpubs a few miles east for after the hike; there’s no food stop along the trail. At Tunnel Falls, take a moment on the curved path to see how the stream, basalt bowl and passage fit together; a tight crop of the water alone misses what makes this destination unusual.