3rd St., Keystone, South Dakota. County/parish: Pennington.
Added to the National Register of Historic Places February 22, 1981. NRIS 81000577.
1 contributing building.
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.
In 2018, it has been the Keystone Historical Museum for a number of years.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/93205541