|NRHP Reference #||09000815|
|Added to NRHP||October 8, 2009|
The Winnett Block is a site on the National Register of Historic Places located in Winnett, Montana. It was added to the Register on October 8, 2009. Built in 1918 from locally quarried sandstone, it was originally for commercial use. It became the Petroleum County Courthouse in 1928.