The Colorado River is the largest watershed in the southwestern US, emptying into the Salton Trough before reaching the Sea of Cortez. Over the past 2-3 million years, river sediments built a delta that extends from the US-Mexico border for a distance of 87 miles (140 kilometers). However, today the Colorado River delta is undergoing significant erosion and diminishing in size due to the lack of sediment replenishment from upstream sources.
Published Jun 28, 2004
With so much of its water diverted, the Colorado River Delta has dried out and lost much of its vegetation and wildlife.
Published Jun 18, 2020
With nearly all of the Colorado River’s water diverted for human uses, its delta has withered. A plan to release some water from dams and reservoirs this spring offers hope for a greener future.
Published Mar 22, 2014
In September 2010, water again flowed through this riverbed after several dry years.
Published Oct 8, 2010
The Ebro River Delta, located along the eastern coast of Spain, is one of the largest wetland areas in the western Mediterranean region.
Published Jul 26, 2004
Bold hues paint the landscape around this Brazilian river.
Published Aug 4, 2024
In the past few centuries, a river in northwestern Canada stopped wandering and assumed a more direct route to the sea.
Published Sep 4, 2012
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