- Riverside State Park covers 7,575.29 acres with 196,650 feet of freshwater shoreline (including the Centennial Trail). The park offers
101 picnic sites, three kitchens, an interpretive center at Spokane House, 14 vault toilets, 101 vehicle and tent sites, two group camping areas with capacities of 248 or 31 trailer/RV spaces, six storage buildings, one shop, nine historical buildings, 36.7 miles of foot and horse trails, a 218-foot pedestrian suspension bridge, 47.3 miles of paved road, and a 600-acre motorcycle and ORV that includes a restroom, picnic shelter, shop, parking lot, telephone, and planting of protective vegetation. In addition, the park operates a boat launch near Spokane House and provides equestrian facilities and services in the Fort George Wright portion of the park.
Recreation - Activities at the park include boating, camping, fishing, hiking, horseback riding, interpretation, motorcycle and ATV riding, picnicking, snowmobiling, cross country skiing, and bird watching.
Climate - Washington's climate varies with each region. The Cascades split the state and alter weather patterns. Riverside State Park, located east of the mountains, receives significantly less rainfall than regions west of the mountains with an average annual precipitation of twelve inches.
Average summer temperatures are 94 degrees maximum and 50 degrees minimum. Because central Washington is landlocked and subject to winter winds, winter temperatures are much colder than those in western Washington.
Riverside State Park, in northeast Washington, is six miles northwest of the Spokane City Center at the Junction of State Route 291 and Rifle Club Road.