This is a climb called the Dike Route, on Pywjack Dome, up in the Yosemite high country.

Because as soon as you hear the word Dutchman which is an archaic word, nobody calls Dutch people Dutchmen anymore but as soon as you hear Dutchman, you get this picture of the kid with his finger in the dike, preventing the thing from falling and flooding Holland, and so on.