Western Apache fire management once reshaped Arizona’s forests — and tree rings prove it. A new study combining tree-ring ...

A study done in collaboration with multiple universities, including the University of Arizona, analyzed tree rings to prove ...

A relentless drought across Arizona has left people who hunt acorns finding smaller harvests and weaker trees.

PHOENIX — A federal judge is questioning some actions by the state’s gaming director in his bid to block the Tohono O’odham Nation from operating a full-scale casino near Glendale.