August 28, 2018

by Amrit Singh

The churning water of the Colorado River flows through the Grand Canyon.

August 27, 2018

by Kevin Rimcoski

Bapchule, in northern Pinal County, offers a sunset view of a dust storm rolling over the mountains.

August 26, 2018

by Zalman Wainhaus

The full moon rises over the Superstition Mountains as the cliffs catch the last rays of sunset.

August 25, 2018

by Theresa Rose Ditson

Wildflowers and grasses surround fallen logs on Mingus Mountain.

August 24, 2018

by David Blanchard

Lightning strikes in the Red Rock-Secret Mountain Wilderness at sunset.

August 23, 2018

by Michael Wilson

Delicate wildflowers grow amid the harsh terrain of White Pocket, part of Vermilion Cliffs National Monument.

August 22, 2018

by Fritz Rumpf

Black-and-White Wednesday: Havasu Creek flows over travertine shelves just downstream from Mooney Falls.

August 21, 2018

by Robert Gallucci

Grasses, yuccas and rock formations define a Southern Arizona high-desert landscape.