California, Arizona and Nevada are urging the Trump administration to change course on the Colorado River. The states are ...

In a blistering letter, water officials in Arizona, California and Nevada recently took the federal government to task for failing to plan adequate measures to protect crucial ...

Advanced Water Purification rules will help cities all over Arizona create a new, safe and reliable source of drinking water.

The Yavapai-Apache Nation and The Nature Conservancy have partnered to develop the water conservation tool used along the ...

Democratic U.S. Rep. Raúl M. Grijalva of Arizona, who championed environmental protection during his 12 terms in Congress, ...

U.S. Sen. Ruben Gallego, Navajo Nation President Buu Nygren and a slew of members of Congress were among those paying tribute ...

At a remote gorge in the Salome Wilderness in Arizona, experience cliff-jumping into brisk, cold water and some truly challenging hiking trails.