Geography

As severe water scarcity becomes an increasingly real and dire prospect for Arizona, looking south to Sonora offers important insight.

Restoring natural infrastructure, such as beaver habitat and the wetlands it creates, could shield communities from damaging floods, remove toxins and high sediment loads from water, and reduce the apocalyptic effects of megafires.

This page features ground-based and drone-captured photos and videos of the Rio Grande in northern New Mexico near the Taos Junction Bridge and the river's confluence with the Rio...

This page features aerial photos of Arizona's Salt River, including its confluence with the Verde River. Both the Salt and Verde are tributaries of the Gila River and part of the Colorado...

This page features aerial photos of Arizona's Granite Reef Diversion Dam, along the Salt River near Mesa. Completed in 1908, the dam is only 29 feet high but 1,000 feet long. It was...

This page features aerial photos of Arizona's Stewart Mountain Dam and Saguaro Lake along the Salt River northeast of Phoenix. Stewart Mountain Dam was built from 1928 to 1930 by the Salt...

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.