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More than 1,000 buffalo thunder across the prairie land Monday, Sept. 24, 2012, during the 47th annual Buffalo Roundup in western South Dakota's Custer State Park. Event organizers estimate that more than 14,000 people attended the event. (AP Photo/Kristi Eaton)

Annual buffalo roundup

Nearly 1,300 buffalo thundered across the prairie land at the 47th annual Buffalo Roundup in western South Dakota's Custer State Parkon Sept. 24, which drew more than 14,000 spectators.