Geography

The Santa Cruz River may be dry but it has come alive with people who are making a seasonal river cleanup a community conservation tradition in Tucson.

Pitkin County is making beavers a top priority, funding measures that may eventually restore North America’s largest rodent to the Roaring Fork watershed.

Southwestern Colorado’s Blue Mesa Reservoir, drained by years of drought and a major release of water designed to aid a plummeting Lake Powell, is experiencing a rebirth this summer.

California’s Salton Sea offers a tableau of dead wildlife, toxic dust, and neglect. It was long in the making.

This page features photos and videos from a wilderness rafting trip on the Rio Chama in northern New Mexico. The Rio Chama is a major tributary of the Rio Grande...

Decades of climate change-driven drought, combined with the overpumping of aquifers, is making the valley desperately dry — and appears to be intensifying the levels of heavy metals in drinking water.

40 million people rely on the Colorado River system for water and power. But after 20 years of drought, the river basin is running low. For the Water Desk,...

This page features aerial 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 as a part of...

The proposed Copper World Complex mine is carving roads and berms that will impact wildlife and waterflow.

This page features aerial photos of the Dolores River and McPhee Reservoir in southwest Colorado. The Dolores River begins in the San Juan Mountains and meets the Colorado River in...