William Hyser / Austerlitz Post Office

Historical marker location:

6440 W River Dr NE, Plainfield Charter Township, Michigan

( Marker is at the intersection of West River Drive Northeast and Mall Avenue Northeast, on the right when traveling east on West River Drive Northeast.)

Marker installed: 1981

The first known use of the word "Yooper" to refer to someone from the Upper Peninsula of Michigan was in the 1970s. The term has since become a popular nickname for residents of the UP.