| Gerhardt Octagonal Pig House | |
| Coordinates: | 46.8744°N -102.4936°W |
| Built: | 1930 |
| Architecture: | Octagonal Pig-house |
| Added: | October 7, 1986 |
| Delisted: | July 14, 2015 |
| Area: | less than one acre |
| Refnum: | 86002758 |
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.
It is a pig brooding house which is 24feet in diameter.[1]