"The Castle" is an imposing mansion built in 1892 by Bryon Roger Sherman. It is now the home of the Meagher County
Museum. The Victorian landmark is made of hand-cut granite blocks hauled by oxen from the nearby Castle Mountains. The museum is complete w ith period furniture, mineral samples, clothing and artifacts from the region's past. It is open from mid-May to mid-September. Hours of operation are 10:00am to 6:00pm. Castle Museum is located at 4th Avenue and Jefferson in White Sulphur.