Spillway Campground
Open first-come, first-served. The primary season runs Memorial Day through Labor Day with water and trash services available. Off-season camping is permitted at a reduced rate, but campers must bring water and pack out trash. Access to the Letts Lake basin may be impacted by M10 Road construction.
Fireworks and Explosives are always Prohibited
Fireworks and explosives (including explosive targets) are always prohibited on national forest lands. The prohibition of fireworks and exploding targets on national forest system lands is part of a set of permanent fire safety regulations in the Code of Federal Regulations (CFR), listed below.…
M6 Road Traffic Control at Eel River Crossing
On Sept. 21-22, 2026 there will be traffic control on the M6 Road at the Eel River crossing, located about 15 miles north of Lake Pillsbury in the Upper Lake Ranger District. A project to replace the culvert at the M6/Eel River crossing is underway, and contractors will be working on design and…
Lucas Fire Area Closure in Effect
Forest officials have issued an updated emergency closure for a portion of the Upper Lake Ranger District on Mendocino National Forest in northern Lake County due to the Lucas Fire. Fire activity has reduced, however firefighting resources are still active in the Hunter Point area. Suppression…
About
Spillway Campground sits at the southern end of Letts Lake within Mendocino National Forest, about 19 miles west of Stonyford. This intimate 9-site loop (sites 34-42) is part of the larger Letts Lake recreation area, which encompasses 42 total sites across four distinct loops. The campground occupies a forested setting near the shores of a scenic 35-acre mountain lake. The lake is the primary attraction, supporting non-motorized boating, swimming, and trout fishing. A fully accessible fishing pier makes angling easy for visitors of all abilities. A one-mile trail circles the lakeshore, offering gentle hiking with lake views. Each campsite is equipped with a fire ring and picnic table, and the area is served by accessible vault toilets. Potable water and trash service are available only during the primary season from Memorial Day through Labor Day. During shoulder seasons the campground remains accessible at a reduced fee, but campers must bring their own water and pack out trash. The campground operates first-come, first-served with no advance reservations. Payment is made on-site via QR code through the Recreation.gov app.
Directions
Located 19 miles west of Stonyford via M10 Road. Access roads are suitable for vehicles with camping trailers up to 30 feet.
Amenities
| Water | Yes |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | — |
| Wifi | No |
| Pets Allowed | — |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $6 - $12 |
Vehicle
| Max RV Length | 30ft |
| Max Trailer Length | 30ft |
| Big Rig Friendly | No |
| Pull Through Sites | — |
Contact
| Phone | +1 (530) 963-3128 |
Cell Service
| AT&T | None |
| Verizon | None |
| T-Mobile | None |
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