The Michigan Air–Line Railway (reporting mark MAL) was a short-line railroad in Oakland County, Michigan.It ran from West Bloomfield, Michigan to Wixom, Michigan, where it connected to CSX. The headquarters and station were in Walled Lake, Michigan. The name was owned by Railmark Holdings, Inc. The railroad ran its last Michigan Star Clipper Dinner Train on December 31, 2008. On November 12, 2009, Railmark announced that it was selling the railroad to .