The temporary burial site of the man who shot and killed Jesse James.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

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

The site of a defunct mill, that once supplied marble for the construction of the Lincoln Memorial.

This Rocky Mountain mansion was the luxurious home of the authoritarian leader of a company town.

A little-known hot spring haven right below the highway.

Metal water storage tank turned ethereal concert hall.

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.

An eclectic collection of artifacts from the Wild West is preserved in a remote fictional pioneer town.

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

The site of the gruesome massacre—and maybe cannibalism—of five men, a tragedy that made Alferd Packer infamous.

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

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

Colorado's only true geyser is hidden within the San Juan National Forest.

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

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

Only a few signs remain of the buried Colorado mining town that supplied the uranium for the first atomic bomb.

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

A remote sandstone plateau named for a legendary cattle rustler.

A crack flared at the base provides a pathway completely through a sandstone ridge near Moab.

The fifth-longest natural arch in the world, and the longest outside China.

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.