High Quality Content by WIKIPEDIA articles! The Prineville Reservoir is located in the high desert hills of Central Oregon, Oregon, United States. The reservoir is on the Crooked River located 14 miles (22.5 km) southeast of Prineville, OR, and 29 miles (46.7 km) east of Bend, Oregon . This reservoir is a popular retreat for most of Central Oregon. It is located near the geographic center of Oregon, and is managed by the Oregon Parks and Recreation Department.