Geography

In studying what led to this historic avalanche cycle, snow scientists are identifying some elements — such as warmer temperatures, wetter air and snow, and more-intense storms — that are consistent with a warming climate.

This page features drone-captured photos and videos of the Rio Grande near Fort Craig, New Mexico Established in 1854, Fort Craig was the site of the largest Civil War battle...

Colorado’s reservoirs are 25 percent lower than they were last year at this time, as a hot, dry summer continues into the fall.

The Rio Blanco Water Conservancy District placed a call for its water rights, which could potentially alter the system for other water users.

A new law gives the state authority to test water quality in mobile home parks and force owners to fix any issues. The testing program officially begins this summer, but state officials have gotten a head start at one community in Western Colorado that helped spur the legislation.

This page features photos of the Central Arizona Project (CAP) canal, a cornerstone of Arizona's water supply. Created in 1968 by the Colorado River Basin Project Act, the CAP is...

The U.S. Army Corps of Engineers has determined that the operators of a marble quarry violated the Clean Water Act when they diverted a tributary of the Crystal River to make way for a mining road.

This page features ground-based and drone-captured photos and videos of the Arkansas River in central Colorado. The Arkansas River begins near Leadville, Colorado and travels nearly 1,500 miles until it...

Farmers and ranchers in Colorado have submitted proposals to help restore the Colorado River, but the impacts remain uncertain.

This page features photos of Theodore Roosevelt Lake and Theodore Roosevelt Dam, along the Salt River east of Phoenix. Roosevelt Dam, which rises 357 feet, was the first structure completed...