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A Massive Volcanic Eruption

This rock is what remains from one of the biggest volcanic eruptions ever.
Volcanoes of Sand

What we found were strangely regular circles in the sandstone.
Tearing North America Apart

A map of the Midwest of the United States shows the distribution of basalt flows.
Fossilized Sand Dunes

This is Zion Canyon. Its 2000-foot sandstone cliffs are among the tallest of their kind.
Rockies 2.0

But why is it that these layers that were once horizontal are now standing on their heads?
Monument Rocks 1

This video explores Monument Rocks.
Monument Rocks 2

This video explores Monument Rocks.
Manhattan Skyline

It's actually the geology that gives this very American city its very particular look.
New York's Mountains

Today these steel and concrete giants dominate New York’s skyline.
Manhattan Schist

All over the city you can see outcrops of bedrock. It’s called Manhattan schist.

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