Geology

A remote, little-known natural arch in granite in the desert of northwestern Nevada.

A Dutch museum preserves the world's most diverse collection of vertical slices of soil.

Erosion left these fascinating granite formations strewn across fields and mountains in Burgundy.

This Moab institution functions as both a rock store and a small natural history museum.

Drive up a paved road into "Nevada's Yosemite" for exquisite views and mountain hiking in an alpine setting.

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

Two craters, which probably erupted within the last 1,500 years and are now filled by alkaline lakes, represent Nevada's youngest known volcanic activity.

The waters of these secluded falls are said to have healing powers.

Narrow slot canyons in a badland eroded into soft sedimentary rock provide an otherworldly landscape in this remote Nevada state park.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

Journey through various trails to discover a land before time along the Chazy Fossil Reef.

With a crest near 10,000 feet, this treeless fault-block mountain in eastern Oregon provides stunning views and spectacular glacial landforms.

This outdoor museum harkens back to the height of the gold rush.

These 400 million-year-old caves feature honeycomb limestone formations.

The largest open-pit gold mine in Canada.

Atop an active stratovolcano, two lakes separated by a narrow strip of land.