The Tim Thering Octagon Barn built in 1907 is an historic

octagon In geometry, an octagon (from the Greek ὀκτάγωνον ''oktágōnon'', "eight angles") is an eight-sided polygon or 8-gon. A '' regular octagon'' has Schläfli symbol and can also be constructed as a quasiregular truncated square, t, whi ...

al barn built by Edgar Carpenter located north of

Plain In geography, a plain is a flat expanse of land that generally does not change much in elevation, and is primarily treeless. Plains occur as lowlands along valleys or at the base of mountains, as coastal plains, and as plateaus or uplands ...

Wisconsin Wisconsin () is a state in the upper Midwestern United States. Wisconsin is the 25th-largest state by total area and the 20th-most populous. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake M ...

. It is listed in ''Dale Travis' Wisconsin Round Barns List''.Wisconsin Round Barns List - Sauk County
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References

Octagon barns in the United States Buildings and structures in Sauk County, Wisconsin Barns in Wisconsin {{Wisconsin-struct-stub