Summer sun warms the stones of Wupatki

Polygonal sandstone at the White Pocket

Crescent moon over the White Pocket

Wukoki holds a glow of clear evening light

Sunset on Navajo Mountain and Gunsight Butte

Lichen trails on the colored stone of the White Pocket

Summer sky through a corner doorway at Aztec Ruins

Reconstructed kiva and yucca flowers at Aztec Ruins

Stubborn plants in a small patch of sand at the White Pocket

Quiet light in the reconstructed Great Kiva at Aztec Ruins

Complete roomblocks fade into dark at Aztec Ruins

Thick stone walls tower over Aztec Ruins

Reflection in a waterpocket at the White Pocket

Polygonal hills reflect sunset at the White Pocket

Great sandstone cliff within Buckskin Gulch

Anasazi petroglyph on the wall of Buckskin Gulch

Ephemeral pool reflects the Wave

Spruce Tree House viewed from across the canyon at Mesa Verde

Dark and light meet within Spruce Tree House at Mesa Verde

Kiva ladders reach from within Spruce Tree House at Mesa Verde

Sculpted stone reflects at the Wave

Square Tower House bristles with scaffolding at Mesa Verde

The Virgin River issues from the Narrows of Zion

Glowing walls at the Temple of Sinawava at Zion

Sky shines through a second-level doorway of Wukoki

Rain and red earth fill the Wupatki ballcourt

Frosted spires at Bryce Canyon

Tachihara above the Colorado River at Horseshoe Bend

The San Francisco Peaks stand over the box canyon at Lomaki

Evening light on the tower of Wukoki

Upstream Colorado River at Horseshoe Bend

Downstream Colorado River at Horseshoe Bend

Small plant above the Colorado River at Horseshoe Bend

Ruins at the Lomaki box canyon

Doorway and window align through Wukoki

Sunny afternoon at Wukoki

Snake petroglyph on the foundation of Wukoki

Freezing sandstone formations at Bryce Canyon

Seedling in a washbed near Wukoki

Orion above a moonlit Wukoki

Fallen walls reveal the San Francisco Peaks at Lomaki

Snow-dusted cliffs at Zion

Spring snow on the high cliffs of Zion

Early spring snow at Zion

Early spring snow at Zion

Shining mountains from the Angel's Landing trail at Zion

Sunrise light in the Temple of Sinawava at Zion

Sun catches a waterfall along the Emerald Pools of Zion

Hanging waterfall at the head of the Emerald Pools of Zion

Springtime in the valley of Zion from the Emerald Pools

Partial walls at Hungo Pavi mimic the stone cliffs of Chaco Canyon

Square window in fine masonry at Chetro Ketl in Chaco Canyon

Broken walls reveal a square doorway at Chetro Ketl in Chaco Canyon

Small windows border a broken wall at Chetro Ketl in Chaco Canyon

Windows and doors look out from the back wall of Chetro Ketl at Chaco Canyon

Ancient petroglyph between great houses at Chaco Canyon

High standing sections of Pueblo Bonito at Chaco Canyon

Square set internal doorways of Pueblo Bonito in Chaco Canyon

Small sunlit doorway at Pueblo del Arroyo in Chaco Canyon

Cottonwood snag in the channel of the stream of Chaco Canyon