Hotels-live.com - The mystery surrounding the moving rocks on the Racetrack at Death Valley National Park solved, thanks to GPS and Time-lapse photography. @michaelmelford #deathvalley #nationalparks #nature #landscapes @natgeocreative @thephotosociety ht

Hotels-live.com - The mystery surrounding the moving rocks on the Racetrack at Death Valley National Park solved, thanks to GPS and Time-lapse photography. @michaelmelford #deathvalley #nationalparks #nature #landscapes @natgeocreative @thephotosociety journals.plos.org/plosone/article?id=10.1371/journal.pone... @Hotelslive by natgeo instagram.com/p/s26XJloVQA/ Follow #Instagram @Hotelspaschers instagram.com/hotelspaschers and @Voyageslive #Twitter #TeamFollowBack #Natgeo #Voyage #Travel #TFB #FollowTrick www.facebook.com/125048940862168/photos/a.801751693191886... via Hotels-live.com www.facebook.com/pages/p/125048940862168 #Retweet #TeamFollowBack #F4F #TityFollowTrain via http://flic.kr/p/oUnnqp