Trillium Lake charges $10 to park, and the forest pass everyone already owns won’t cover it
Pull up to Trillium Lake with the $5 day pass hanging from your mirror, and the fee collector is going to wave you right past it. This is one of the few spots in Mount Hood National Forest where the pass most hikers already carry doesn’t cover a thing.
The lake itself is the reason nobody minds paying twice. Mount Hood rises directly behind the water here, and on a still morning the reflection is clean enough that you’ll wonder if someone edited it.
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The one pass that actually works
Trillium Lake charges a flat $10 per vehicle per day, collected by an operator stationed along the road into the lake. The only way to skip paying it is a $30 annual Northwest Forest Pass — the orange hangtag version, not the daily kind.
That’s the detail that trips people up. The $5 daily Forest Pass most hikers grab at a trailhead kiosk doesn’t apply here, and neither does the federal America the Beautiful pass. Bring cash or a card if the annual pass isn’t already in your glovebox.
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Why everyone pays it anyway
Trillium Lake sits at 3,600 feet on 63 acres of water, with Mount Hood filling the whole background. We’ve paddled across it more than once, and the cold still catches you off guard even in the middle of August.
Only non-motorized boats are allowed here — kayaks, canoes, paddleboards — which is exactly why the surface stays glassy enough for that reflection shot. There’s a boat ramp, a fishing pier stocked with trout, and enough shoreline that swimming never feels crowded even on a busy day.
For the full paddling, camping, and hiking rundown, check out our Trillium Lake guide.
The hike, if you want one
The Trillium Lake Loop Trail circles the entire lake in about 2 easy miles with almost no elevation gain. Long stretches are wide gravel or boardwalk, so it works for strollers and wheelchairs just as well as hiking boots.
It’s also a solid home base if you want more elevation than the loop gives you. Government Camp and several Mount Hood hikes are a short drive up the highway.
When to go, and what happens after the gate closes
Day-use season runs May 1 through December 1 this year, and summer weekends get busy enough that a few hundred cars can line the access road by midday. Get there early, or plan around it.
Once the road closes for winter, the lake doesn’t disappear, it just gets harder to reach. From December through May you’ll need the Trillium Sno-Park on Highway 26 instead, turning the trip into a 4.4-mile round trip on skis or snowshoes.
Trip tips: grab a rental car to get out here, lock in a hotel before Government Camp fills up, or skip both and book a camper van instead.
Rules and fees change — always confirm current requirements before you go.
