These are selections of fire insurance maps published by the Sanborn Map Company housed in the collections of the Geography and Map Division. More maps can be found here. 1889 Peters Fire Brick Co Lawrence Iron Works 1928 Dayton Malleable Iron Co Ironton Rolling Mill 1900 Belfont Iron Works 1900 Ironton Rolling Mill 1900 Pine Grove Furnace 1928 Ironton Rolling Mill Belfont Furnace Big Etna Furnace Ironton Fire Brick Co Ironton Furnace 1885 Kelly Nail Mill Sarah Furnace 1900 Marting Iron & Steel (formerly Big Etna Furnace) 1900 Hecla Furnace 1900 Lawrence Furnace 1900 Olive Furnace 1900 Vesuvius Furnace 1909 Center Furnace 1916 Ironton Cement Co (Alpha Portland) 1916 Superior Cement 1928 Alpha Portland Cement 1928 Marquette Cement Co 1900 Hamilton Furnace