Riverside State Park is a sprawling 9,194-acre outdoor destination located near Nine Mile Falls in Washington's scenic Spokane region. This premier campground sits along the Spokane and Little Spokane rivers, surrounded by towering ponderosa pines and abundant natural beauty. The park features campgrounds with electrical and water hookups as well as standard campsites, restrooms with showers, and multiple boat launches, making it ideal for both RV and tent campers seeking modern conveniences in a wilderness setting. Visitors enjoy diverse recreational opportunities including boating, kayaking, paddleboarding, and fishing on both calm and whitewater sections of the river. The park offers approximately 100 miles of trails perfect for hiking, mountain biking, and horseback riding. Adventure seekers can access the 600-acre off-road vehicle area and equestrian facilities. Winter enthusiasts appreciate snowshoeing, cross-country skiing, and snowmobiling options. The nearby Spokane House Interpretive Center (open seasonally, May–September) provides insights into regional fur trade history, enriching cultural experiences. Whether seeking water-based recreation, trail exploration, or family camping, Riverside State Park delivers comprehensive amenities and outdoor experiences in one of Washington's most diverse natural recreation areas.