The iron ores of Lake Superior, containing some facts of interest relating to mining and shipping of the ore and location of principal mines, with original maps of the ranges
The Iron Ores of Lake Superior: Containing Some Facts of Interest Relating to Mining and Shipping of the Ore and Location of Principal Mines, with Original Maps of the Ranges
The Iron Ores of Lake Superior: Containing Some Facts of Interest Relating to Mining and Shipping of the Ore and Location of Principal Mines