The Cliffs Ranger Station is an early United States Forest Service ranger station in what is now Walnut Canyon National Monument in northern Arizona, United States. Also known as the Old Headquarters of the national monument, it was built in 1904 by the Forest Service, and served as the monument headquarters after it was established in 1915. The log cabin is one of the oldest remaining log cabins in northern Arizona. It served as the living quarters for the park's early custodians. The cabin measures 45 ft (14 m) by 15 ft (4.6 m) overall, including an addition at the east end. The roof overhang of the addition has been cut back to allow an alligator cypress to grow close to the building. The interior is divided into four rooms.