In the universe of the Ben 10 franchise, Mount Rushmore is the location of the main Plumbers (a sort of intergalactic police force) complex, and plays a key role in multiple episodes of the series, including "Secrets," "Truth", the "Ben 10,000" episodes, and "Ben 10 vs.
Mount Rushmore was a primary location of interest in the plot of the 2007 film National Treasure: Book of Secrets starring Nicolas Cage [REF].