Ruth Lake
Lake · California
ℹ️ Community-reported spot. Details below are compiled from public sources and are reported to be accurate — always verify locally before visiting.
About this swimming hole
Ruth Lake is a remote reservoir on the Mad River in the Six Rivers National Forest, with swimming, boating, and camping far from the crowds. The lake's forested shoreline and quiet coves make it a hidden gem. Summer water temps are comfortable for long swims.
Good to know
| Water type | Lake |
|---|---|
| Water temperature | 60s-70s in summer |
| Depth | reservoir swim areas |
| Best season | June-September |
| Fees | Free (USFS) |
| Reservations required | No |
| Parking | lakeside lots; rough access road |
| Amenities | restrooms, campground, boat launch |
| County | Trinity County |
| Nearest town | Mad River |
| Safety notes | no lifeguard; remote — limited services; boat traffic |
Map
Nearby swimming holes
Frequently asked questions
Does Ruth Lake require reservations?
No reservations are required at Ruth Lake based on current information — but verify before you go.
Is there a fee to visit Ruth Lake?
Reported fee info: Free (USFS). Fees can change — confirm with the official link.
When is the best time to visit Ruth Lake?
The best season is typically June-September.
⚠️ Verify before you go. Conditions, fees, reservations, and access can change — confirm details with the official link before visiting. Last verified: September 2026