Lonesome Valley is a 23-mile (37 km) long valley located in central-north Yavapai County, Arizona; the valley is an extension southeastwards from Chino Valley (Arizona), the location of the Big Chino Wash, which becomes the Verde River at Paulden, Arizona; Paulden is located at the northwest terminus of Lonesome Valley. A small sub-valley is located on the northeast perimeter of Chino Valley, Arizona, located in the center-northwest of Lonesome Valley.