Calochortus nuttallii, with the common name sego lily, is a bulbous perennial which is endemic to the Western United States.Mazatzal Wilderness is a wilderness area of about 390 square miles (1,000 km2) in Yavapai and Gila counties in the U.S. state of Arizona.[1] The wilderness is within the Tonto and Coconino national forests.[2] The town of Payson is to the east, and the Verde River is to the west.[2] During summer, temperatures in the wilderness often exceed 110 °F (43 °C).[1]


Elevations range from 2,100 feet (640 m) feet at Sheep Bridge along the river to 7,903 feet (2,409 m) on Mazatzal Peak. The flora varies from desert shrubs at the lower elevations to grassland plants to manzanita, shrub live oak, and other mountain shrubs. Scattered pinyon-juniper woodlands, ponderosa pines, and Douglas-fir are found at higher elevations.[1]

About 240 miles (390 km) of trails cross the wilderness. These include the Verde River Trail, which follows the river for about 28 miles (45 km) and the Mazatzal Divide Trail, which runs north–south for about 29 miles