Our Beautiful Planet

Yellowstone album

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Boardwalk around Geyser Hill, Yellowstone lets off some steam. Because new features form frequently, the boardwalk provides an easily constructed (and movable) way to guide people around the new features and to avoid ground that has become too fragile to walk on. Image taken mid-June 2008. This image is 45% size of original.

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Yellowstone album

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last updated: April 7, 2009