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

This stone marker honors the man who released Canada goose goslings in Fort Collins, Colorado.

A unique arch graces the Dolores River Canyon near the Hanging Flume.

A remote sandstone plateau named for a legendary cattle rustler.

The start of the group that straightened the teeth of a nation.

An innovative local park built from an abandoned sewage treatment plant.

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

A tribute to Loveland’s most famous sweethearts, who helped spread cupid’s message to millions.

Historic, 19th-century wagon wheel ruts cut into soft volcanic ash.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

This small piece of railroad history sits behind the parking lot of a chain grocery store.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

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

This old train trestle and collapsed tunnel once allowed the railroad to negotiate the steep slopes of the Colorado Rockies.

This restored farmhouse is a time capsule of a 19th-century Colorado homestead.

It's easy to forget what century it is as you wander this rustic homestead.

This 19th-century ranch is being transformed into a residential library with thousands of books about the natural world.

The final resting spot of the Colorado Transportation Department's beloved unofficial mascot.

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

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

This statue of an obscure comic strip hero stands as a tribute to patriotic service and a cautionary tale about embracing fads.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

Paleoamericans built these ancient walls high in the Colorado Rockies as part of an extensive hunting system.

The giant stump of the once towering cottonwood where Ute people held tribal meetings.