Overview: How can rocks in Death Valley, CA move by themselves, leaving trails that stretch for hundreds of feet?
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First Air Date: Mar 14, 2011Last Air date: Jan 23, 2013Season: 2 SeasonEpisode: 17 EpisodeRuntime: 44 minutesQuality: HDIMDb: 0.00 / 10 by 0 usersPopularity: 1.73Language: English