Unidentified biker rides past the barricades and sign at the entrance to Rock Creek Park in Chevy Chase, Maryland on Tuesday, October 1, 2013.  The National Park Service has closed all of its facilities due to Congress not passing a funding bill by midnight September 30.  The road, Rock Creek Parkway, which runs through the park, is a major thoroughfare for motor vehicles and bicycles between the Maryland suburbs and downtown Washington, D.C.<br />
Credit: Ron Sachs / CNP<br />
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