Bego gerhart biography of martin

Sitting around a fire at a campsite along the Colorado River in Utah, boater Mike DeHoff flips through old photos of the area.

Scientists from the United States Geological Survey circle around him and peer interestedly over his shoulder. He points to an old picture of the North Wash boat ramp, where the group is camped.

Bego gerhart biography of martin

The ramp was built about 20 years ago as a temporary take out for boaters running Cataract Canyon, a popular section for whitewater rafting, flowing through Canyonlands National Park upstream of Lake Powell. But in the past few decades, the ramp has deteriorated rapidly as water levels receded in the lake and the river here cut away at the land.

DeHoff, a welder based in Moab, Utah, runs the Returning Rapids Project, which documents annual changes in a section of the Colorado river called Cataract Canyon.

The project brings external scientists out to survey species,