Downstream view at sunrise of the free-flowing Colorado River viewed from just below its confluence with the Dirty Devil River. When Lake Powell was last full in 1999, its surface was 95 feet above the present level of the Colorado River here and it extended 35 miles upriver from this location. The reservoir's fading "bathtub" ring can be seen at the base of the cliffs. The pre-reservoir river channel here is now filled with 130 feet of accumulated sediment from the Colorado River as it emptied into Lake Powell during the last 30 years. Due to this sediment layer, the river now flows at an elevation 130 feet above its pre-reservoir bed. Salt Cedar (tamarisk), an invasive plant from the Middle East, has taken over the top of the sediment layer at the bottom of the frame. Glen Canyon National Recreation Area, Utah. Photo Date: October 2007. This horizontal photograph was captured using a 6x7 format camera. All photos in these galleries may be ordered as fine art framed prints or for stock photography usage.