West Yellowstone

This sign brings Montana into Road Sign Math.



Square root signs are nothing new to Road Sign Math, in fact, they are somewhat like weeds. They just seem to keep popping up all over the place! They are not always the most elegant or impressive, but this sign is definitely an exception. The stunning simplicity of this square root deserves all the praise and elegance of the Genesis sign that inspired the hunt for mathematically significant roadsigns] in the first place.

$$\sqrt{100} = 10$$

This sign is found US 20 heading eastbound, about 50 feet east of the Montana-Idaho border.