The Grand Canyon is located in the northwest corner of Arizona, United States. It stretches about 277 miles (446 km) long and up to 18 miles (29 km) wide, carved by the Colorado River which flows through it
. The Grand Canyon lies entirely within the state of Arizona, close to the borders of Utah and Nevada
. The canyon and its rims are contained within Grand Canyon National Park, which covers over 1.2 million acres in Coconino and Mohave counties in northwestern Arizona
. The park includes the South Rim, which is open year-round and is the most developed area with visitor facilities, and the North Rim, which is more rugged and open seasonally from mid-May to mid-October
. The Grand Canyon National Park area extends from near the town of Page at the Utah-Arizona border in the northeast, westward to where the Colorado River empties into Lake Mead at the Arizona-Nevada border
. The South Rim is accessible via Arizona State Route 64 near Tusayan, and the North Rim is accessed by Highway 67 near Jacob Lake in northern Arizona
. In summary, the Grand Canyon is in northern Arizona, primarily within Grand Canyon National Park, spanning a large area along the Colorado River between the borders of Utah and Nevada
