Historical Marker
Whoop Up Trail
Historical marker location:
Shelby, Montana
( Marker is on U.S. 2 at milepost 283 near Kraft Road, on the right when traveling east.)
Marker installed: 1968
Montana was the last state to raise its legal drinking age to 21, doing so in 1987 after a federal law was passed that required all states to have a minimum drinking age of 21 or risk losing federal highway funding.