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Date: 2013-10-22 20:05:59Geocaching Hobbies Treasure hunt Muggle Cache Minnesota State Park Geocaching Challenge Recreation GPS Human behavior | Printable Page 1 of 1 Geocaching: A high-tech treasure hunt Thinking Outside The Classroom with Keystone Science SchoolAdd to Reading ListSource URL: www.keystonescienceschool.orgDownload Document from Source WebsiteFile Size: 17,81 KBShare Document on Facebook |