The Disappearing Dark Sky
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- Related Links
- Chaco Culture NHP
- http://www.nps.gov/chcu/nsindex.htm
- Canyonlands NP
- http://www.nps.gov/cany/naturescience/lightscape.htm
- Rock Creek Park Nature Center
- http://www.nps.gov/rocr/naturecenter/
- Preserving Endangered Night Skies
- http://www2.nature.nps.gov/YearInReview/yir2001/05...
- International Dark Sky Association,
Count the Stars Activity - http://www.darksky.org/infoshts/is113.html
- WebRangers Turtle Hurdles Activity
- http://www.webrangers.us/activities/turtlehurdles/?id=36
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