The small body of water is a spring-skiing draw at Arapahoe Basin, Colorado.

The Colorado River Basin lost an alarming amount of groundwater over the past 20 years, a new study found. Nearly 28 million acre-feet of water has been depleted from the region, nearly the volume of ...

As the Colorado River shrinks due to drought and climate change, the negotiators must decide who will take less water — and they need to do so in the next few months.