Proxy Falls plunges 226 feet into a lava field, and the water never reaches a stream
Most Oregon waterfalls end in a pool, or a creek that keeps rolling downhill. Lower Proxy Falls does neither — it free-falls 226 feet off a glacier-cut cliff, hits a pile of porous lava rock at the bottom, and sinks straight into the ground.
That lava field isn’t ancient scenery, either. It’s roughly 1,500 years old, poured down from Collier Cone near North Sister and spread across a canyon that glaciers had already carved into a deep U-shape 6,000 years earlier. Proxy Creek just never got the memo that the valley floor changed underneath it.
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Reaching both falls is an easy 1.6-mile loop with about 164 feet of climbing, according to AllTrails — moderate mostly because of one short, slippery scramble down loose rock to the lower falls viewpoint, not because of the mileage. We’ve got a full turn-by-turn trail guide here if you want the play-by-play.
Stay on the main trail past that turnoff and you’ll reach Upper Proxy Falls too, a wide, tiered drop over a mossy basalt slab on the other side of the loop. It’s a gentler view than the lower falls’ straight plunge, but worth the short detour anyway.
We’ve hiked this loop more than once, and the lower falls viewpoint is the one that gets us every time — standing on that eroded slope with basalt columns dripping overhead never gets old. Short on time? That’s the half of the loop to prioritize.
The trailhead sits off Highway 242, the McKenzie Pass Scenic Byway, which only opens once the snow clears — typically mid-June — and closes again by early November. Right now it’s wide open, and the parking lot fills early on summer mornings.
You’ll need a day-use pass at the trailhead: $5 for the day, or a Northwest Forest Pass covers it. Between June 15 and October 15, you’ll also need a free, self-issued wilderness permit, available right at the trailhead, since the loop enters the Three Sisters Wilderness almost immediately.
Have you made it out to Proxy Falls yet this summer, or is it still on the list?
Trip tips: grab a rental car for the drive out Highway 242, lock in a hotel in McKenzie Bridge or Sisters, or turn the whole scenic byway into an overnight in a camper van instead.
Rules and fees change — always confirm current requirements before you go.
