I recently processed a collection which documents Michigan ski trains. These passenger trains brought people to northern Michigan locations to ski and enjoy various winter festivals, 1930s-1950s. Earl G. Kirby was the originator of the idea. Ski trains used to take passengers to/from Alpena, Benzie, Boyne, Cadillac, Cheboygan, from Detroit to Mackinaw or Petoskey, Escanaba, Gaylord, Grayling, Ionia, Iron Mountain, Ironwood, Ishpeming, Lake Odessa, Lansing, Ontonagon, Paw Paw, Petoskey, Portland, Traverse City, and West Branch. Here are two photographic postcards related to the ski trains in Grayling. The postcard with the crowd is dated 1945 and the other two are undated.