Spanning over 60,000 acres, the Morenci copper mine in eastern Arizona — one of the largest-open-pit mines in the world — produces hundreds of millions of tons of copper ore each year. But the steep ...

YUMA, Ariz. - The population of desert bighorn sheep on the Kofa National Wildlife Refuge near Yuma in southwestern Arizona has plummeted, a recently completed survey shows. The survey estimated the ...

Authorities in Arizona are seeking public assistance in a poaching case that involves the killing of seven elk and two bighorn sheep. The Arizona Game and Fish Department investigation centers on a ...

Rocky Mountain bighorn sheep have found a haven from predators at the Morenci copper mine in Arizona. State wildlife managers are relocating the sheep to prevent overpopulation and potential accidents ...