Data show pumping by Fort Huachuca — along with homeowners and businesses dependent on it — is jeopardizing the San Pedro ...

Muddy from recent rain, the Clarks Fork flows into the Yellowstone River near Laurel in this aerial view on Wednesday.

During our latest exploration, we followed an old underground pipe and made an unexpected discovery - a massive river cave hidden deep beneath the surface. What began as a simple curiosity turned into ...

The Bureau of Reclamation recently agreed to take the first step in a major water project for northern Arizona, and it could ...