The Grand Canyon’s 2-Billion-Year Staircase

The Grand Canyon’s 2-Billion-Year Staircase
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Carving the Grand Canyon
What did it take to carve the Grand Canyon? Explore theories on how this remarkable chasm came to be. Then take a boat trip through the park, from the Colorado River's access point at Lee's Ferry, down fearsome rapids and into a majestic wonderland. Also, study how humans have changed…
Yellowstone’s Cataclysmic Origins and Future
Read the evidence in the rocks to discover Yellowstone's bigger story: the massive volcanic eruptions that created the region and will one day destroy it, the glaciers that shaped the terrain, and the meltwater floods that carved the impressive Grand Canyon of Yellowstone.
Hawaii Volcanoes - Earth’s Largest Mountains
Compare the lessons of hotspot volcanism at Yellowstone with the very different landscape at Hawaii Volcanoes National Park, which is also stoked by upwelling magma from Earth's mantle. Professor Cochran describes rivers of fire on the Big Island of Hawaii and suggests distinctive lava formations to visit.
The Hawaiian Islands and Maui’s Haleakala
How does a barren volcanic landscape become a tropical paradise? Study the speed with which volcanic islands erode, leaving rich soil behind. Watch these processes at work on the Big Island of Hawaii, at Haleakala National Park on Maui, and also in the National Park of American Samoa.
Alaska’s Glacier Bay and Kenai Fjords
Continue your tour of the largest state with stops at two spectacular parks that are popular destinations for cruise ships: Glacier Bay and Kenai Fjords. Discover how glaciers form and examine their historical advance and retreat in this region. Also, learn how a glacier is like a candy bar!
Yosemite: Nature’s Cathedral
Survey the most beautiful valley on Earth: Yosemite. Even for those who have not yet visited, its views are iconic thanks to stunning photos by Ansel Adams and others. Investigate the geological history of the park, focusing on its most distinctive rock type--granite.
Acadia’s Highlands and Islands
The rocks of coastal Maine reveal a gripping legacy of lost oceans, colliding continents, epic mountains, furious volcanoes, and massive glaciers. Acadia National Park records evidence of all this, etched into its granite summits and boulder-strewn shores.
Montana’s Glacier and the Canadian Rockies
Journey to Glacier National Park, where the glaciers may be disappearing, but the impressive glacier-sculpted terrain remains.
Zion, Gunnison’s Black Canyon, Capitol Reef
Witness other wonders of canyon erosion on the Colorado Plateau, including the deep and narrow Black Canyon of the Gunnison, as well as The Narrows, a dramatic slot canyon in Zion National Park.
Bryce Canyon, Canyonlands, Arches
Nowhere is nature's artistry more exquisite than in the intricately eroded parks of the Colorado Plateau--from Bryce Canyon, to Arches National Park, to Canyonlands National Park. Seek answers to these strange, sculpted landforms, asking questions such as: How did more than 2,000 natural arches form in the Arches region?
Grand Teton and Jackson Hole
At Grand Teton National Park south of Yellowstone, an active fault lifts some of North America's oldest rocks to the summits of some of the continent's youngest mountains. Explore these glacier-sculpted peaks, and learn the origin of the broad valley, called Jackson Hole, at the base of the Teton Range.
Yellowstone: Microcosm of the National Parks
Start your tour of the geological wonders of North America's national parks with Yellowstone, where the breathtaking landscape inspired the idea of a national park. Focus on the processes that produce Yellowstone's many geothermal formations, particularly its geysers.