Luis Carli's
Grand Teton and the Yellowstone

The Cascade Canyon, between the two main peaks of the park.

Yellowstone

The Great Falls of the Yellowstone
The Yellowstone River
Geothermal activity in the park

The park contains many types of ecosystems, and the weather can suddenly change from one area to the other.
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Zion and Bryce Canyons
Maine and the Acadia Park