Earth observation image of Lake Powell taken during STS-100.

STS100-716-176 (19 April-1 May 2001) --- The deeply entrenched, meandering Colorado River is distinctively dark as the river winds its way across the arid terrain of southeast Utah in this 70mm frame photographed from the Earth-orbiting Space Shuttle Endeavour. While Glen Canyon Dam (bottom of image) is located in northern Arizona, the reservoir of Lake Powell is in Utah. The Escalante and San Juan Rivers, two major tributaries that flow into Lake Powell (from the northwest and east respectively) are also discernable. The darker-looking, elongated and elevated feature north of Lake Powell is the Kaiparowits Plateau. Navajo Mountain is the darker circular feature to the south (to the right) of the lake.