Get off the beaten path, and explore Oregon's high desert landscapes at these 5 uncrowded state park destinations. The area has 10 state parks clustered around the towns of Redmond, Sisters, Madras, and Sunriver. Of those 10 state parks, these five really stood out for their stunning scenery, rugged hiking trails, and well-equipped campgrounds. I also tapped a few Oregon locals for beta on their favorite state parks and things to do there. A state park’s brochure for Prineville Reservoir State Park says people commonly find agates, green jasper, thunder eggs, petrified wood, and many other geological treasures.