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19 articles · Page 1 of 1

November 29, 2016

Getting there and getting around Patagonia

Southern Chile has two main gateways, the homey town of Puerto Natales, a 1.5-hour drive from the national park, and Punta Arenas, a small city …

September 28, 2016

Ancient landslide gave us Zion Canyon

It took about 20 seconds for the Sentinel rock landslide to tumble into Zion Canyon, but those seconds changed the landscape for thousands of …

January 11, 2016

Benitoite: A rare gemstone

The tectonic forces that formed Pinnacles also helped form one of the world’s rarest gemstones: benitoite. Gem-quality specimens are only found …

December 9, 2014

Modeling a big mess from Yellowstone

In the event of another super-eruption at Yellowstone National Park, few places in the U.S. would be ash-free, according to a new modeling study. …