Little Colorado River

The Little Colorado River is a tributary of the Colorado River in the U.S. state of Arizona. It has a length of 507 km. The river is the main drainage of the Painted Desert, the southwestern border it forms, and flows through the Navajo Nation, the Navajo Indian Reservation.

It rises on the northeast flank of the White Mountains in eastern Arizona in the south of Apache County and flows in a northwesterly direction through a variety of deep gorges, past the towns of St. Johns, Holbrook and Winslow in Navajo County, until it north about 113 km flows from Flagstaff to the Grand Canyon and the Grand Canyon National Park in Coconino County in the Colorado River.

The river was dammed in its upper course 16 km south of St. Johns, so that the Lyman Lake was formed. Its lower course is the only unspoilt part in the middle reaches of the Colorado River system and the last habitat of the fish Gila cypha, from the carp family, one of the most endangered species of the United States.

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