<<GotoNote   <<<[Keyboard Left] | [Keyboard Right]>>>   if keyboard controls are not working, try refreshing the page ⟳
220px canyon of the colorado river near mouth of san juan river nara 524266

Glen Canyon is a natural canyon mostly in southeastern and south-central Utah covering a 169.6 mile length of the Colorado River. Glen Canyon starts where Narrow Canyon ends at the confluence of the Colorado River and the Dirty Devil River. A small part of the lower end of Glen Canyon extends into the northern part of Arizona and terminates at Lee's Ferry, Arizona, near the Vermilion Cliffs area in the United States. Like the Grand Canyon to the south, Glen Canyon is part of the immense system of canyons carved by the Colorado River and its tributaries.

In 1963, a reservoir, Lake Powell, was created by the construction of the Glen Canyon Dam, in the Arizona portion of Glen Canyon. This dam backed water into Utah, putting much of Glen Canyon under water hundreds of feet in depth. Lake Powell was not the result of negotiations over the controversial damming of the Green River within Dinosaur National Monument at Echo Park. The Echo Park Dam proposal was abandoned due to country wide citizen pressure on Congress to do so.[1]:526 Glen Canyon dam remains a central issue for modern environmentalist movements. Beginning in the late 1990s, the Sierra Club and other organizations renewed the call to dismantle the dam and drain Lake Powell in Lower Glen Canyon.

Today, Glen Canyon and Lake Powell are managed by the U.S. Department of the Interior within Glen Canyon National Recreation Area.

The following is a list or geographical and cultural features along the Colorado River in Glen Canyon. River mileage is derived from the USGS 1921 Plan and Profile maps.[2] River Mile Zero is at Lee's Ferry, Arizona, and goes upstream to Mile 169.6 at the confluence with the Dirty Devil River.

Around 1956, archaeologists and biologists from the University of Utah and the Museum of Northern Arizona, using National Park research grants, planned an emergency excavation of Lower Glen Canyon, which was soon to be flooded by the new Glen Canyon Dam. Between 1958 and 1960, four investigative phases, combined with other surveys prior to 1957, discovered 250 archaeological sites within the canyon. The Lower Glen Canyon survey was completed in 1958.

Glen Canyon - Wikipedia