At 1.6 million acres (650,000 ha) the Kaibab National Forest borders both the north and south rims of the Grand Canyon, in north-central Arizona. It is divided into three major sections: the North Kaibab Ranger District (offices in Fredonia) and the South Kaibab and are managed by the United States Forest Service. The South Kaibab is further divided into two districts, the Tusayan Ranger District (offices in Grand Canyon), and the Williams Ranger District (offices in Williams). The Grand Canyon is a natural boundary between the North Kaibab and the South Kaibab. The South Kaibab covers and the North Kaibab stretches over . Elevations vary on the forest from 5,500 feet (1,676 m) in the southwest corner to 10,418 feet (3,175 m) at the summit of Kendrick Peak on the Williams Ranger District. The forest as a whole is headquartered in Williams.