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Pat Tillman Memorial Bridge

An aerial view shows the Mike O'Callaghan-Pat Tillman Memorial Bridge part of the Hoover Dam Bypass Project behind the Hoover Dam on Oct. 26, 2010 in the Lake Mead National Recreation Area, Ne. (credit: Ethan Miller/Getty Images)

Visitor Numbers Dropping At Hoover Dam

Officials report the number of people taking paid tours of the historic site dropped from 823,000 in 2011 to 755,000 in 2012 and are trending down in 2013.

11/19/2013

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