Ruth Lake


Due to concerns with aquatic invasive species, all boats and flotation devices prior to entering Ruth Lake must be inspected. Loacations and cost info are available at 707-574-6332

Ruth Lake is a seven-mile long reservoir located in the southern portion of Trinity County. The reservoir was formed by the damming of the Mad River in 1962, and has served both as a functional supplier of water to Humboldt County and a recreational area for fisherman, boaters, water skiers and swimmers alike. The reservoir lies in calm, beautiful surroundings of hills covered by ponderosa pine and white fir. The reservoir sits at an elevation of 2,654 feet, which affords cool winters, warm summers, and amazing springs and falls. Off the beaten path, approximately 70 miles from Eureka, Ruth Lake can be especially appreciated for its rainbow trout, and bass fishing, offering a marina and two boat ramps for your convenience. All facilities are located on Mad River Road off of Highway 36.

At a Glance

Restrictions: Prior to launching at Ruth Lake all watercraft must be registered, inspected & have a valid sticker. These Registration and Inspection Requirements are being implemented in an effort to protect Ruth Lake from Invasive Species. Inspection Procedures



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Lake and Pond Fishing

Fish Species * rainbow trout * large & smallmouth bass * catfish * black crappie * bluegill * brown bullhead

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