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Feature
American Landscapes: Yellowstone National Park
Yellowstone National Park
Feature Page
November 2003
Acadia National Park
Badlands National Park
Colorado Plateau
Minnesota Boundary Waters
Olympic National Park
Volcanoes National Park
Wrangell-St. Elias National Park
Yellowstone National Park
Yosemite National Park
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Photograph by Jim Brandenburg, Minden Pictures

Algae and other microbes, tolerant of volcanic heat, paint rings of green and yellow around Yellowstone's Grand Prismatic Spring.
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