Cavers can get recreational permits for other caves in the park, but that program is on hold, as are interpretative tours of Slaughter Canyon Cave. The only ranger-led tour now available is the ...

In late June, a Grand Canyon National Park concessions employee contracted hantavirus, a rare but often fatal rodent-borne ...

Within Rampart Cave in particular, where fossils were dated to between 19,000 and 24,000 years ago, the researchers discovered the remains of two individual cheetahs. One, a juvenile, died of ...

Arizona is known for its stunning red rocks and amazing hiking opportunities. Just northwest of Sedona is one canyon hike that you won't want to miss.

Cave exposed at Canyon Lake. Photo on left was taken by Porshe Devol on Sept. 2. Photo on right was taken Sept. 23 by Pamela Hough Gilbert. The photos show the water levels continuing to drop at ...