Byron R. Sherman House

Byron R. Sherman House
"The Castle"
Location310 2nd Ave., NE, White Sulphur Springs, Montana
Coordinates46°33′03″N 110°54′00″W / 46.55083°N 110.90000°W / 46.55083; -110.90000
Area0.7 acres (0.28 ha)
Built1890
ArchitectMr. Soos
Architectural styleRomanesque
NRHP reference No.77000820
Added to NRHPSeptember 15, 1977

The Byron R. Sherman House, also known as The Castle or The Castle of White Sulphur Springs, is a site on the National Register of Historic Places located in White Sulphur Springs, Montana, United States. It was added to the Register on September 15, 1977. The property includes a carriage house.

The Castle Museum is operated by the Meagher County Historical Society. It includes period furniture, photos, mineral samples, clothing and artifacts from the region's past.

It is a two-story granite mansion upon an elevated basement on a hilltop overlooking the City of White Sulphur Springs. According to its NRHP nomination, "with its heavily rusticated stone (the back, or east facade is laid up in field stone), [it] is a very fine frontier rendition of the late 19th century Romanesque Style." It is squarish, about 40 by 40 feet (12 m × 12 m) in plan, with addition of two full height towers on the south side.