Geomorphology

Fire Islands is an Atlantic Ocean barrier island off the southern shore of Long Island, New York. Photo: Jennifer Miselis, USGS. Public domain.

Barrier Islands in the United States

Caitlin Dempsey

Barrier islands are narrow landforms running parallel to coastlines, protecting shores from storms and erosion while supporting unique ecosystems.

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.

12313 Next