Geological Oddities - Atlas Obscura
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Geological Oddities

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Video

All Roads Lead to Texas | Below The Surface

04:05
Cuatrociénegas, Mexico

Mina de Mármol

A former travertine mine traces the geological history of this unique desert filled with crystalline blue pools.
List

Discover Geological Oddities in Colorado

Over 2 billion years of diverse tectonic forces turned Colorado into a playground for the geologically inclined.
Gypsum, Colorado

Dotsero Crater

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

6 Ways To See Texas Below the Surface

How to explore the state’s caves, caverns, and fascinating geology.
Eagle, Wisconsin

Brady's Rocks

These modest Midwestern formations are kin to Niagara Falls' impressive cliffs, more than 600 miles away.
caves

How to Decode a Cave

Below California’s surface lies a series of caves that can teach us a lot about our natural world—and its history.
Thessaloniki, Greece

Nymfopetra

Legends hold that these unusual rock formations were once a bridal party, or perhaps a group of hunters.
Le Diamant, Martinique

Rocher du Diamant (Diamond Rock)

This large stone off the coast of Martinique had a brief career in the Royal Navy.
Hobe Sound, Florida

Blowing Rocks Preserve

These craggy limestone outcrops offer a glimpse at a unique piece of Florida geology.
Winona, Missouri

Rocky Falls

A 40-foot waterfall flows into this unique natural swimming hole.
Lake Powell, Utah

Cathedral in the Desert

The damming of the Colorado River buried an iconic geologic formation before record-breaking drought brought it back.
Botriolo, Italy

Balze del Valdarno

Leonardo da Vinci was one of many to find inspiration in this unique, rocky landscape in Tuscany.
museums

Podcast: Fluorescent Rocks of Sterling Hill

A light show, courtesy of a historic New Jersey mine.
The Podcast Team November 30, 2022
science

These Tiny Jewels Come From One of Alaska's Most Unusual Beaches

This microscopic treasure was collected from a remote site near the Arctic Circle.
Gemma Tarlach November 15, 2022
Portknockie, Scotland

Bow Fiddle Rock

Named for its similarity to the tip of a violin's bow, this striking formation was created by millions of years of erosion.
Mono City, California

Basalt Plug

This large chunk of dark rock is a relic from an ancient volcanic eruption.
Eaglehawk Neck, Australia

Tasmans Arch

A natural rock bridge towers above the sea.