Geomorphology

Photo taken at an oblique angle from the International Space Station showing Sutter Buttes.

The World’s Smallest Mountain Range

Caitlin Dempsey

Located about 55 miles north of Sacramento in Northern California, this small volcanic formation is known as "the world's smallest mountain range."

Satellite imagery of an atoll.

Geography of Atolls

Caitlin Dempsey

Atolls are ring-shaped coral reefs, islands, or a series of islets that encircle a lagoon either partially or completely.

A view of a green covered mountain with misty clouds in the foreground.

What is England’s Highest Mountain?

Caitlin Dempsey

Found at 978 metres (3,209 ft) above sea level, Scafell Pike is located in Lake District National Park in Cumbria.  

A shaded relief map with labels of the highest point in each state.

Highest Point in Every U.S. State

Caitlin Dempsey

Discover the highest point in each U.S. state.

Graph with lines in 1,000 foot intervals with a mountain graphic and labels corresponding to the heights of the five tallest mountains in the United States.

The Highest 11 Mountains in the United States

Elizabeth Borneman

Learn about the highest 11 mountains in the United States.

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