The extensive collection of an amateur naturalist.

It's safe—and permitted—to walk across these twin natural sandstone arches.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

Largest man-made excavation on earth!

A dazzling display of red rocks weathered into spires and hoodoos.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

Oddly shaped rock formation, misassociated with a nearby utopian community.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Jurassic Park—A Still Life.

A desert settlement founded and later abandoned by Hawaiian members of the Church of Jesus Christ of Latter-day Saints in Utah's Skull Valley.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

A small oasis not far from downtown Moab.

A ghost town that held steady longer than most, but finally gave up the ghost.

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

A Mars simulation in the southern Utah desert.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

The largest island on the great salt lake is home to curious creatures and strange stories.

This ghost town was once a cult-like religious utopian settlement.

This quiet park's strange sedimentary spires were named after Kodak's color film.