Completed in 1941, Mount Rushmore received its first cleaning in the summer of 2005. The 60-foot-tall granite faces of four American presidents were blasted with highly pressurized 150-degree water, which caused all the dirt, grime, and moss that had accumulated to fall away.
About time! Washington has some serious adult acne and Roosevelt’s has a bat in the cave.
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Duck Duck Gray Duck 
They are clean now, that’s awesome!
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