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National Park ServiceThe Milky Way -- the remoteness of the parks offers great views of the night sky
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Bootprint on pink algae in snow.  

Did You Know?
Patches of colorful pink snow in the High Sierra are actually colonies of snow algae — Chlamydomonas nivalis. Unlike most species of fresh-water algae, it thrives in freezing water. Compressing the red snow with your boot increases the intensity of the color. Warning: Do not eat it!

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Last Updated: July 25, 2006 at 00:22 EST