Geography

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 the Dolores River and McPhee Reservoir in southwest Colorado. The Dolores River begins in the San Juan Mountains and meets the Colorado River in...

A better understanding of groundwater in the headwaters could improve streamflow predictions

Some fear perceived harm to downstream water users could prompt push for water rights

A warming climate has been linked to human activity around the world, and has affected the Colorado River System as well. The impacts are substantial, from reduced water flows, threats to indigenous species and the influx of new invasive species along the river system.

Unhoused Angelenos use the urban river as a source of sustenance, but a proposal to revitalize the waterway could push them out.

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 ground-based and drone-captured images and videos of the Rio Grande Gorge, near Taos, N.M. The Rio Grande Gorge is a striking canyon up to 800 feet deep...

Western governors say it's time to help states recover from wildfires, thin overgrown forests and protect mountain water systems.

Communities along the Colorado River are facing a new era of drought and water shortages that is threatening their future. With an official water emergency declaration now possible, farmers, ranchers, and towns are searching for ways to use less water and survive.