| Winnett Block | |
| Coordinates: | 47.0044°N -108.3481°W |
| Area: | less than one acre |
| Architecture: | Early Commercial |
| Added: | October 8, 2009 |
| Refnum: | 09000815 |
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[1] from locally quarried sandstone, it was originally for commercial use. It became the Petroleum County Courthouse in 1928.