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Making America's Best Idea Even Better
Northern Rio Grande National Heritage AreaPiedra Lumbre
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Northern Rio Grande National Heritage Area
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Northern Rio Grande National Heritage Area
Aspen tree bark close-up  

Did You Know?
Did you know that the bark on Aspen trees looks green because it contains chlorophyll? Aspen bark is photosynthetic, a process that allows a plant to make energy from the sun, and helps the tree flourish during the short growing season.

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Last Updated: April 23, 2009 at 00:57 EST