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The Gerhardt Octagonal Pig House near Gladstone, North Dakota, United States, was built in 1930. It was listed on the National Register of Historic Places in 1986.[1]
It is a pig brooding house which is 24 feet (7.3 m) in diameter.[2]
References
- ^ a b "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
- ^ "National Register of Historic Places Inventory/Nomination: Gerhardt Octagonal Pig House". National Park Service. 1986. Retrieved November 11, 2018. With accompanying photo from 1986