The Keystone School, on 3rd St. in Keystone, South Dakota, was listed on the National Register of Historic Places in 1981.

It is a large rural school built 1897-1900 by Eli Shomaker, with roof of wood shingles. With

In 2018, it has been the Keystone Historical Museum for a number of years.

References

External links Keystone Historical Museum, official site