Sunset and moonrise over the San Francisco Peaks, Arizona.

Sunset over Sedona, Arizona.

Sunset over northern Arizona.

Colorado sunset viewed through dust from the El Chichón volcanic eruption.

Sunset colors bathing a cumulonumbus over eastern Colorado.

Sunset over the Kachina wetlands, northern Arizona.

Sunset colors on a thunderstorm anvil in southwestern Nebraska.

Sunset colors illuminating cumulonimbus mammatus (Cbmam) over southwestern Nebraska.

Sunset over the Kachina wetlands, northern Arizona.

Sunset over the Fiery Furnace, Arches National Park, Utah.

Smoky sunset over the North Rim, Grand Canyon National Park.

Sunset over eastern Colorado.

Sunrise over Mt. Humphreys, northern Arizona.

Sunset under a supercell, eastern Colorado.

Sunset colors on a thunderstorm anvil in southwestern Nebraska.

Sunset with sun pillar over northern Arizona.

Northern Arizona sunrise.

Eastern Wyoming sunset.

Eastern Wyoming sunset.