Cloud streets over the Great Lakes, February 110, 2016. NASA image by Jeff Schmaltz, LANCE/EOSDIS Rapid Response.

Cloud Streets

Cloud streets are cumulus clouds that form in long bands along cylinders of rotating air and are roughly parallel to the ground.

Geography of Interest

Snow in Hawaii

Hawaii may be in the tropics, but it gets snow every year.

How Ice Balls Form

When conditions are just right, a strange phenomenon called ice balls or ice eggs can form along beaches during cold conditions.

When Rivers Become Ice Roads

During the cold winter months, parts of Canada’s Mackenzie River become a ice road that trucks up to 22,000 pounds can navigate.

Geography Basics

What is Geography?

Geography is the science that studies the Earth and the physical and human influences that shape it.

Latitude and Longitude

Learn more about lines you see on a map running east-west and north-south called latitude and longitude.

How Many Countries Are There?

The answer to the question of how many countries there are in the world remains a question with many different possible answers.

Understanding Direction Based on the Sun

This lesson plan introduces the concept of direction to young children by using the location of the Sun in order to understand where east, west, north, and south are located.

United States Geography

Snow in Hawaii

Hawaii may be in the tropics, but it gets snow every year.

Geography of Montana

The fourth largest state, Montana has a diverse geography that stretches from grass prairies to mountainous terrain.

Geography of Giant Sequoias

Giant sequoias are one of the longest lived tree species, with the oldest giant sequoia living an estimated 3,400 years.

Geography of Extremes

Physical Geography

Snow in Hawaii

Hawaii may be in the tropics, but it gets snow every year.


Human Geography

Maps and GIS

How Black Cartographers Highlighted Injustice

The work of the Black Panther Party, a 1960s- and 1970s-era Black political group featured in a new movie and a documentary, helps illustrate how cartography can illuminate injustice.

What is a Cartifact?

A cartifact is an object containing a map that is used primarily for design rather than as a source of information.

Geography Books