Geology in Colorado

This distinctive snowfield on the slopes of a Colorado fourteener has several legendary origin stories.

A boulder so big and tough, they had to turn it into a landmark.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

Colorado's only active volcano last erupted around 4,000 years ago.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

Take a dip in the world's largest mineral hot springs pool.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

It takes a nine-mile hike to reach these hot springs, but weary hikers are rewarded with stunning views and a warm soak.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

This National Natural Landmark is one of the best examples of a “mass wasting” in the world.

This interpretive path lets you get up close and personal with dinosaur bones.

Two creeks flow out of either end of this canyon in opposite directions.

A river runs through this remote valley in a very unexpected way.

A mural of the Virgin of Guadalupe painted on the rock wall by canyon's religious namesake.

Unlike most arches, this geological oddity formed in a volcanic dike.

A prehistoric rock shelter that's literally in someone's backyard.