River Des Peres Sewage and Drainage Works

Historical marker location:

5100 Clayton Avenue, Saint Louis, Missouri

( Marker is on Clayton Avenue, 0.4 miles west of South Kingshighway, on the right when traveling west.)

The Gateway Arch, located in St. Louis, is the tallest arch in the world, standing 630 feet tall. It was built as a monument to the westward expansion of the United States and opened to the public in 1967.