October 2, 2015

by Chikku Baiju

Clouds loom over the cactuses of the Superstition Mountains near Phoenix.

October 1, 2015

by Kirsten Bauman

Jagged rocks surround a placid pool at Tonto Natural Bridge State Park.

September 30, 2015

by Bobby RC Hutchinson

Black-and-White Wednesday: A mature saguaro reaches skyward at Saguaro National Park near Tucson.

September 29, 2015

by Antonios Printezis

A prickly pear cactus blooms at a Gilbert riparian preserve.

September 28, 2015

by Thomas Sines

From any angle, Red Rock Country near Sedona is photogenic.

September 27, 2015

by Russell McGuire

The placid Salt River reflects surrounding buttes.

September 26, 2015

by Lisa Swanson

A mother hummingbird tends to her young in Maricopa.

September 25, 2015

by Boyd L. Robinson

Morning fog recedes from a grassy field near Greer in the White Mountains.