Sunset on the Grand Canyon from Mather Point, Grand Canyon National Park Arizona

Sandstone buttes redden at sunset, from Hopi Point, South Rim, Grand Canyon National Park, Arizona, USA

Sunset defines Mt Hayden against shadowed canyon walls, view south from Point Imperial, North Rim, Grand Canyon National Park, Arizona, USA

The Temple of Sinawava is a red Navajo sandstone cliff in the Zion Canyon, towering above the Virgin River and Freemont cottonwood (Populus fremontii) trees. The waterfall is seasonal, photographed in spring (mid April). Zion National Park, Utah, USA.

Cliffs overlooking Tower Falls at sunset in Yellowstone National Park.