g4 Minnesota Academy of Science 



Freeborn, Steele, Waseca, Blue Earth, Faribault, Watonwan, 

 Martin, Cottonwood, Jackson, Murray, Nobles, Pipestone, Rock, 

 Brown, Redwood, Yellow Medicine, Lyon, Lincoln, Big Stone, 

 Lac qui Parle, Le Sueur, and Rice Counties. In Vol. 1 there 

 was also a comprehensive treatment of early explorations, also 

 a treatment of building stones and of the physical features of 

 Minnesota. 



The second volume of the Final Report appeared in 1885. 

 This treated the counties in the central part of the state, in- 

 cluding Wabasha, Goodhue, Dakota, Carver, Scott, Sibley, Nic- 

 ollet, McLeod, Renville, Swift, Chippewa, Kandiyohi, Meeker, 

 Wright, Hennepin, Ramsey, Washington, Chisago, Isanti, Anoka, 

 Benton, Sherburne, Stearns, Douglas, Pope, Grant, Stevens, 

 Wilkin, Traverse, Otter Tail, Wadena, Todd, Crow Wing, Mor- 

 rison, Mille Lacs, Kanabec, Pine, Becker, and Clay counties. 



In Vol. 4 of the Final Report, 1896-1898, was treated the 

 geology of the north part of Minnesota, including the counties 

 Carlton, Aitkin, Cass, and part of Crow Wing, Hubbard, Nor- 

 man, Polk, Marshall, Rosseau, Kittson, Beltrami, Itasca, St. 

 Louis, Lake, and Cook ; the Pokegama Lake ; Grand Rapids and 

 Swan Lake plates ; the Hibbing, Mountain Iron, Virginia, Part- 

 ridge River, and Dunka River plates of the Mesabi Iron Range ; 

 the Gabbro, Snowbank, Fraser, Akeley, Gunflint, Rover, and 

 Mountain Lake plates ; the Pigeon Point, Vermilion Lake, Carle- 

 ton, and Duluth plates. 



In this volume the geology of the iron ranges is discussed 

 and also the economics of iron ores are summarized. Of the 

 Final Report, Vol. 3, as already stated, treats the Paleontology 

 of Minnesota, Vol. 5 treats the Petrology, and Vol. 6 is an atlas 

 in which maps of each section of the state are brought together 

 with a brief discussion of the geology of each. 



Iron ore was first produced in Minnesota in 1884, when 

 the Duluth and Iron Range Railroad was completed from Two 

 Harbors to Tower. That year the Minnesota Iron Co. began 

 shipments at a rate of 15,000 tons a month. 



The Mesabi Iron Range lies south of the Vermilion Range 

 and the road to the latter crosses the Mesabi at the town of 

 that name. Valuable iron deposits were found in this region in 

 1890 and shipments began in 1892. Iron had been noted at 



