The Buffalo Main Post Office in Buffalo, Wyoming was built in 1911 as part of a facilities improvement program by the United States Post Office Department. The post office in Buffalo was nominated to the National Register of Historic Places as part of a thematic study comprising twelve Wyoming post offices built to standardized USPO plans in the early twentieth century. References External links at the National Park Service's NRHP database Buffalo Main Post Office at the Wyoming State Historic Preservation Office Neoclassical architecture in Wyoming Government buildings completed in 1911 Buildings and structures in Buffalo, Wyoming Post office buildings in Wyoming Post office buildings on the National Register of Historic Places in Wyoming 1911 establishments in Wyoming National Register of Historic Places in Johnson County, Wyoming