The Colorado River Basin is divided into upper and lower ... a water source that serves 40 million people over seven states in the southwestern United States. Disclaimer: AAAS and EurekAlert!

During a tour of the Western Slope last week, U.S. Sen. John Hickenlooper, D-Colo., said he was frustrated with the pace of negotiations that could determine how the Colorado River is shared in the ...

The US Geological Survey assessed technically recoverable oil and gas reserves in Maverick basin formations in the Western ...