The Prairie Homestead is a sod house located on South Dakota Highway 240 north of Interior, South Dakota. The house was constructed by Ed Brown and his wife in 1909. The Browns built their home with sod bricks and topped it with a grass roof. The house is now one of the few remaining sod homes in the state. There are farm animals on site and the house is located in the midst of a prairie dog town. It is probably one of the best places to observe the little creatures up close.