Aerial view of muddy river water from upstream meeting the clear water of Lake Powell.
At Hite, sediment is deposited into Lake Powell

Where rivers enter Lake Powell, large amounts of sediment are deposited. Near Hite, where the Colorado River enters the lake, approximately 150 feet of sediment has accumulated. The dynamics of the sedimentation processes in Lake Powell were explored lake-wide through cooperation with Duke University, University of New Brunswick, Northern Arizona University, and the Bureau of Reclamation. Surveys of the lake bottom were completed for the main channel and the San Juan channel of the lake.

As the elevation of the lake surface fluctuates, sediment that has accumulated at the inflow deltas can be re-suspended into the water and impact water quality. A cooperative study between the U.S. Geological Service and the National Park Service was conducted to monitor for a wide range of potential contaminates. Results indicated only very low levels of contaminates.

Last updated: April 26, 2023

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Mailing Address:

PO Box 1507
Page, AZ 86040


928 608-6200
Receptionist available at Glen Canyon Headquarters from 7 am to 4 pm MST, Monday through Friday. The phone is not monitored when the building is closed. If you are having an emergency, call 911 or hail National Park Service on Marine Band 16.

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