Cleaning Up Mt. Rushmore In South Dakota, the four famous faces on Mt. Rushmore are getting a well-needed scrub. The monument to presidents George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln has become threatened by colonies of microbes. Michele Norris talks with Thorsten Moewes of the Alfred Karcher Company about their efforts to clean the monument.
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Cleaning Up Mt. Rushmore

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Cleaning Up Mt. Rushmore

Cleaning Up Mt. Rushmore

Cleaning Up Mt. Rushmore

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  • <iframe src="https://www.npr.org/player/embed/4730642/4730643" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

In South Dakota, the four famous faces on Mt. Rushmore are getting a well-needed scrub. The monument to presidents George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln has become threatened by colonies of microbes. Michele Norris talks with Thorsten Moewes of the Alfred Karcher Company about their efforts to clean the monument.