Preliminary report on the geology of east central Minnesota, including the Cuyuna iron-ore district, Bulletin 15, Plate 4

Preliminary report on the geology of east central Minnesota, including the Cuyuna iron-ore district, Bulletin 15, Plate 4 Full Details

Title:: Preliminary report on the geology of east central Minnesota, including the Cuyuna iron-ore district, Bulletin 15, Plate 4
Description:: Map and sections showing the geology and workings of the Pennington, Armour No. 1, and Armour No. 2 Mines, Cuyuna Iron-ore District, Minnesota, surveyed in July, 1915, scale 1 inch = about 130 miles.
Creator:: Harder, E.C. and Johnston, A. W. (A. Walfred)
Publisher:: Minnesota Geological Survey
Provider:: University of Minnesota
Resource Class:: Maps
Theme:: Environment
Temporal Coverage:: 1918
Date Issued:: 1918
Place:: Minnesota
Access Rights:: Public
Format:: PDF
Language:: English
Date Added:: 2021-04-26