Explore Making North America
North America Sky Tour
Formation of the Ancestral Rockies
Time Travel in the Grand Canyon
What does this geological wonder reveal about North America’s deep history?
A Labyrinth of Lava
Towers of Chalk in Kansas
The Dinosaurs Were Not Alone
Ice Age Death Trap
Scientists race to uncover a site in the Rockies packed with fossil mammoths and other extinct ice age beasts.
Pushing the Limits of Life
How Water Is Reshaping the West
New dams and reservoirs are unmistakably altering the American West’s iconic landscapes.
Mt St Helens: Back From the Dead
The Volcano Under Yellowstone
These Boulders are Alive
Inside Glacial Lake Missoula
North American Sky Tour
Making North America Interactive Map
Discover how North America took its shape by visiting geological sites across the continent, searching for clues in the landscape, and viewing episodes from the broadcast series Making North America, in this interactive produced by NOVA.
Uncovering Layers of the Grand Canyon
North American Gold
The Undamming of America
We’ve impounded rivers for hundreds of years, but as our society has evolved, so has our relationship with dams.
Bigger Than T. rex
Meet Spinosaurus—the lost killer of the Cretaceous and the world's largest carnivorous dinosaur ever.