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Published on Oct 9, 2012
When it comes to rock art, Hueco Tanks, east of El Paso, is in a class by itself with rock art that dates back 6000 years. Unfortunately, over the years some of the pictographs have been damaged by graffiti. But now a new type of laser technology is about to turn back time. It's a laser light show that wipes away the graffiti but doesn't affect the pictograph underneath. For more on Hueco Tanks State Park, see http://www.tpwd.state.tx.us/state-par...