![2011 World Listening Day NPS-World Listening Day image](https://web.archive.org/web/20160423033821/http://www.nature.nps.gov/naturalsounds/images/VisitorListeningYosemite_lg.jpg)
National Park Services, 2011 World Listening Day
“Some of our most profound experiences in life are not seen; they are heard.”
Check out the new National Park Services’ web page for 2011 World Listening Day, from the Night Skies and Natural Sounds Division!
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