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 Date: 2012-09-25 03:13:18Lighting Light International Dark-Sky Association Dark-sky preserve Clayton High School Light pollution Observatory Dark sky parks Astronomy Clayton Lake State Park |
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Date: 2012-09-25 03:13:18Lighting Light International Dark-Sky Association Dark-sky preserve Clayton High School Light pollution Observatory Dark sky parks Astronomy Clayton Lake State Park |
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INTERNATIONAL DARK-SKY PARK DESIGNATION (GOLD LEVEL)