Pontiac Square Park

Historical marker location:

909 Ann Ave, Saint Louis, Missouri

( Marker is on Ann Avenue west of South 9th Street, on the right when traveling east.)

Marker installed: 2019

South 9th St. & Ann Ave.. circa 1908

The Missouri River is the longest river in North America, stretching for 2,341 miles from its source in Montana to its mouth in the Gulf of Mexico.