Kayakers rest on the dry shore of the Colorado River in Horseshoe Bend.
The penstock towers on the reservoir side of the Hoover Dam. In normal years, the water would be significantly higher.
Horseshoe Bend, a natural U-turn in the Colorado River downstream of Lake Powell.
Professor David Kreamer of the University of Nevada Las Vegas looks out over the Hoover Dam.
A wide shot Lake Mead and the Las Vegas Marina reveals how low the water levels are this year.
A stretch of the Colorado River, looking downstream from Horseshoe Bend.
The Hoover Dam was completed in 1936, creating Lake Mead, the largest reservoir in the US.
The chalk-white ring on the canyon walls reveals how much the water has dropped in Lake Mead in recent years.
A stretch of the Colorado River along Route 128 in Utah.
A dry stretch of the Colorado River bed outside of Moab, Utah.
A ring of white shows where the water level once reached on Lake Powell.
Fish swim in Lake Mead near the Las Vegas Marina.
Cory Olsen, 64, poses on his motorboat at a boat ramp on Lake Powell. Mr Olsen has been boating on the lake since he was 12 and is alarmed by the low levels.
Tourists gather at Horseshoe Bend, a natural U-turn in the Colorado River.
Joe Lapekas, owner of Lake Powell Paddleboards in Page, Arizona, looks out at the water.
Kayakers carry their boats down the rocky banks of Lake Powell. In normal years, they would be able to float their kayaks off the tarmac ramp.
An arid landscape along Route 128 in Utah.
Kayakers rest on the dry shore of the Colorado River in Horseshoe Bend.
The penstock towers on the reservoir side of the Hoover Dam. In normal years, the water would be significantly higher.
Horseshoe Bend, a natural U-turn in the Colorado River downstream of Lake Powell.
Professor David Kreamer of the University of Nevada Las Vegas looks out over the Hoover Dam.
A wide shot Lake Mead and the Las Vegas Marina reveals how low the water levels are this year.
A stretch of the Colorado River, looking downstream from Horseshoe Bend.
The Hoover Dam was completed in 1936, creating Lake Mead, the largest reservoir in the US.
The chalk-white ring on the canyon walls reveals how much the water has dropped in Lake Mead in recent years.
A stretch of the Colorado River along Route 128 in Utah.
A dry stretch of the Colorado River bed outside of Moab, Utah.
A ring of white shows where the water level once reached on Lake Powell.
Fish swim in Lake Mead near the Las Vegas Marina.
Cory Olsen, 64, poses on his motorboat at a boat ramp on Lake Powell. Mr Olsen has been boating on the lake since he was 12 and is alarmed by the low levels.
Tourists gather at Horseshoe Bend, a natural U-turn in the Colorado River.
Joe Lapekas, owner of Lake Powell Paddleboards in Page, Arizona, looks out at the water.
Kayakers carry their boats down the rocky banks of Lake Powell. In normal years, they would be able to float their kayaks off the tarmac ramp.
An arid landscape along Route 128 in Utah.
Kayakers rest on the dry shore of the Colorado River in Horseshoe Bend.