Preliminary report on the geology of east central Minnesota, including the Cuyuna iron-ore district, Bulletin 15, Plate 5 - Big Ten Academic Alliance Geoportal

Preliminary report on the geology of east central Minnesota, including the Cuyuna iron-ore district, Bulletin 15, Plate 5

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Creator:: Harder, E.C. and Johnston, A.W.
Description:: Map and sections showing the geology and workings of the Thompson Mine, Cuyuna Iron-ore District, surveyed July, 1915, scale 1 inch = 130 miles.
Publisher:: Minnesota Geological Survey
Place:: Minnesota
Resource Class:: Maps
ISO Topic Category:: Environment
Date Published:: 1918
Temporal Coverage:: 1918
Provider:: University of Minnesota
Format:: PDF