Oxford FurnaceGeological survey map of the iron ore veins in and around property owned by Oxford Furnace. Surveyed and drawn by G. M. Hopkins under the direction of George H. Cook, State Geologist and John C. Smock, State Assistant Geologist.JPEGhttps://doi.org/doi:10.7282/T34X58RQPublicOre veins in Warren County map 1867MapsNew JerseyRutgers University-New Brunswick