The Pere Marquette wye and roundhouse at Plymouth, Michigan.  This roundhouse was in the northeast quadrant of the Plymouth interlocking, which was an important junction of the PM's Toledo to Ludington (via Saginaw) line, and their Detroit to Chicago (via Grand Rapids) line.  Trains from Detroit to Toledo and points south passed through Plymouth when they changed lines.  This photograph is from the early 1900's.

  [Mark Worrall Collection]

Plymouth, MI

Pere Marquette Railroad