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

Ute tour guides have been sharing the ancient dwellings and rock art inside this large park with visitors for more than 40 years.

A remote sandstone plateau named for a legendary cattle rustler.

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

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

Two tall rocks sit at the center of this site, once the home of a large Ancestral Puebloan community.

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

The decaying ruins of a failed mining company’s water diversion project cling to the side of a desert canyon.

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

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

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

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

An ADA-accessible trail and deck offering stunning views of Colorado’s Mount of the Holy Cross.

This massive home was constructed by one of the greatest conservationists in Colorado history.

The remains of an early 1900s dude ranch that operated until the 1970s.

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

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

This now-abandoned outcrop is an important Native American spiritual site, overtaken by European settlers and mining pollution.

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

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

16,500-acre ranch filled with American heritage, geological wonders, and a giant pile of tires is the crown jewel of an intriguing tug-of-war.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

A small store filled with animal skulls and other curiosities.

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