Brockhaus-1911: Iron-clad · Iron · Mountain Ash
Lueger-1904: Iron wood · Iron bricks
Meyers-1905: Iron Mountain · Iron, Ralph · Iron-sand · Iron-stone · Iron · Irōn · Cast-iron · Mountain Time · Mountain Ash
Pierer-1857: Great Iron Mountain · Iron Mountain · Iron Mountains · Iron · Iron Duke · Clyde Iron Works · Shade Mountain · Sharp Mountain · Saint Helen's Mountain · Savage Mountain · Stone Mountain · Tussey's Mountain · Table Mountain · Tuscarora Mountain · Wachusett-Mountain · Green Mountain · Green Mountain Boys · Broad Top Mountain · Bare Mountain · Broad Mountain · Monadnock Mountain · Saddleback Mountain · Mahoopeny Mountain · Kearsarge Mountain · King's Mountain