40 E. Main St., Hummelstown, Pennsylvania. County/parish: Dauphin.
Added to the National Register of Historic Places May 09, 1985. NRIS 85001002.
2 contributing buildings.
The Keystone Hotel is an historic, American home that is located in Hummelstown, Dauphin County, Pennsylvania.
It was added to the National Register of Historic Places in 1985.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/71995910