The Pah Rah Range is a mountain range located in western Nevada in Washoe County just to the northeast of Reno. It is a hook shaped range with the main eastern portion oriented northwest-southeast, approximately 20 miles (32 km) long. The northwest flowing Cottonwood Creek in Warm Springs Valley is bounded on three sides by the range. To the south and east the Truckee River forms the boundary and Pyramid Lake is at the northeast. Spanish Springs Valley north of Reno forms the southwest margin. To the north the narrow Mullen Pass separates the Pah Rah Range from the Virginia Mountains.