ELMERS ISLAND, La. - Cleanup workers remove an identified tar mat Tuesday, March 20, 2012. The island was heavily affected by the Deepwater Horizon oil spill. As the tar mat is unearthed, crews sift to remove additional sand and shells in attempts to return beaches to pre-spill conditions. U.S. Coast Guard photo by Petty Officer 2nd Class Elizabeth H. Bordelon.
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