The deserted building next to the New Buffalo Railroad Museum is a roundhouse for the Pete Marquette Railroad. It was built between 1919 and 1920.. It was originally a 16 stall semi circular facility used to service, repair and turn steam locomotives.

The massive train yard in New Buffalo closed in 1947. The round house was abandoned in 1984. Today only 3 of the brick stalls survive. Briefly commercial businesses rented these.

The original turntable mechanism that spun train engines was relocated to a different site.