Grand Canyon and around Grand Canyon

The San Francisco Peaks are a volcanic mountain range located in north central Arizona, United States, just north of Flagstaff. The highest summit in the range, Humphreys Peak, is the highest point in the state of Arizona at 12,633 feet (3,851 m). The San Francisco Peaks (known locally as simply "the Peaks") are the remains of an eroded stratovolcano

http://en.wikipedia.org/wiki/San_Francisco_Peaks

The Hopi are American Indians people who primarily live on the 12,635 km² (2,531.773 sq mi) Hopi Reservation in northeastern Arizona. The Hopi Reservation is entirely surrounded by the much larger Navajo Reservation. The two nations used to share the Navajo-Hopi Joint Use Area. The partition of this area, commonly known as Big Mountain, by Acts of Congress in 1974 and 1996, has resulted in seemingly endless controversy

http://en.wikipedia.org/wiki/Hopi

The Grand Canyon is a steep-sided gorge carved by the Colorado River in the United States in the state of Arizona. It is largely contained within the Grand Canyon National Park — one of the first national parks in the United States.

Longstanding scientific consensus has been that the canyon was created by the Colorado River over a six million year period. The canyon is 277 miles (446 km) long, ranges in width from 4 to 18 miles (6.4 to 29 km) and attains a depth of over a mile (1.83 km) (6000 feet).[1] Nearly two billion years of the Earth's geological history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted. The "canyon began in the west, followed by another that formed in the east.

http://en.wikipedia.org/wiki/Grand_Canyon