National Park Service, Arizona.
Located in Arizona, Grand Canyon National Park encompasses 277 miles (446 km) of the Colorado River and adjacent uplands. The immense Grand Canyon is a mile (1.6 km) deep, and up to 18 miles (29 km) wide. Layered bands of colorful rock reveal millions of years of geologic history with unmatched vistas from the rim. The South Rim is open 24 hours. The North Rim is Closed for the Winter.
South Rim: Open all year, is located 60 miles north of Williams, Arizona (via route 64 from Interstate 40) and 80 miles northwest of Flagstaff (via route 180). Grand Canyon lies entirely within the state of Arizona. North Rim: Closed for the Winter between December 1 and May 15. The North Rim is located 30 miles south of Jacob Lake on Highway 67; the actual rim of the canyon is an additional 14 miles south. Jacob Lake, AZ is located in northern Arizona on Highway 89A, not far from the Utah border.