The Hokkaido Maruseppu Recreation Forest Park Railway or Maruseppu Forest Park Ikoi-no-Mori Railway (Japanese: 丸瀬布森林公園いこいの森鉄道, Maruseppu Shinrinkōen Ikoi no Mori Tetsudō) is an approximately 1 miles long narrow gauge heritage railway with a track gauge of 2 ft 6 in near the Japanese City of Engaru near Mombetsu in the Okhotsk Subprefecture on the island Hokkaidō.