Wikipedia contributors. (2024, October 21). Richard Feynman. In Wikipedia, The Free Encyclopedia. Retrieved 06:09, October 25, 2024, from https://en.wikipedia.org/w/index.php?title=Richard_Feynman&oldid=1252399871
Four Mile Rock (also Fourmile Rock) is a round granite erratic, approximately 20 feet (6.1 m) across, in the intertidal zone below Seattle’s Magnolia Bluff and 60 yards offshore.