There is no shortage of activities for those seeking outdoor fun at Mossyrock Park. Pack a picnic and experience the fantastic and calming lake views.  Let the kids run off energy at the playground. Overnight RV camping makes this a popular destination.

Tacoma Power's Mossyrock Park is a family-friendly park with access to Riffe Lake. Enjoy year-round camping, day-use area and boat launch (park is closed Dec. 20 - Jan. 1). 152 individual campsites and 48-site group camp with nine pods of five or six sites are available. Also find a half-mile trail and 3.5-mile loop trail (of which 0.8 miles is wheelchair accessible).

Other amenities include a boat launch, fish cleaning station, playground, horseshoe pits, volleyball court, wheelchair-accessible restrooms, coin-operated showers and laundry facilities, a store and fast-food concession stand (seasonally operated).

A new swimming area and boat launch are open; two lanes are usable (one to 723 feet, the other to 737 feet). 

Get updates on lake levels, boat launches and swim areas, or call 1-888-502-8690 for recorded info.

Nearby, the Day Use area of the Hydrovista viewpoint provides a close up look at the Hydroelectric Dam and the spillways into the Cowltiz River