Overview
Grizzly Creek is the most accessible trail from the Willow Creek area in Six Rivers National Forest, following a clear Klamath Mountain tributary through old-growth Douglas fir and red alder forest with swimming holes and fishing access throughout. The 4.5-mile out-and-back is a solid moderate hike with consistent creek character and good wildlife viewing.
No permit required.
The Route
Miles 0 to 2.0: Creek corridor. The trail follows Grizzly Creek east from the trailhead through an alder and Douglas fir forest that stays green year-round. The creek is immediately present and accessible. Deeper pools appear at intervals, suitable for swimming from late June through September.
Miles 2.0 to 2.25: Upper section and turnaround. The trail enters the steeper upper section where the canyon narrows. The turnaround is at a waterfall and plunge pool, one of the best swimming spots on the route.
When to Hike
April through June for high water and wildflowers. July through September for swimming.
What to Bring
Many hikers carry 1.5 liters of water. Creek water is available but requires treatment. Sandals or water shoes for swimming stops.
Trailhead Access
County Road 1 east of Willow Creek on State Route 299.
Practical Details
No permit is required for day hiking on this trail. Dogs are welcome on leash. No restroom facilities are at the trailhead; plan accordingly. Water sources are present along the trail but require treatment before drinking. Cell service is limited in this area; downloading offline maps before your visit is recommended.
The recommended season for this trail is April through October. Conditions outside this window may include challenging weather, trail closures, or reduced accessibility. Always verify current conditions with the Six Rivers National Forest ranger district before visiting, particularly at the beginning and end of the recommended season when conditions are most variable.
Before any visit, review the Leave No Trace seven principles and our checking conditions guide for current fire restrictions, trail closures, and ranger district advisories. The America the Beautiful pass covers day use fees at developed recreation areas where applicable. Veterans and active military have additional access options covered in our veteran benefits guide.
This trail is one of several hiking options in the area. The surrounding national forest land protects the habitat corridor and ensures that the trail experience remains consistent across visits. Seasonal variation in vegetation, wildlife activity, and trail conditions means each visit offers a somewhat different experience from the last. Light and temperature change the character of the terrain, and return visits in different seasons reveal aspects of the landscape that a single visit may miss.
Nearby
The Bluff Creek Trail is the more remote river hike north of Willow Creek. See the Six Rivers National Forest guide. Follow Leave No Trace principles.