Preliminary geological map of the iron bearing rocks of the northeastern part of Minnesota based on the field notes of N.H. Winchell in 1878, 1879 and 1886, and of A. Winchell in 1886. [cartographic material] - Yale University Library GeoBlacklight

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Preliminary geological map of the iron bearing rocks of the northeastern part of Minnesota based on the field notes of N.H. Winchell in 1878, 1879 and 1886, and of A. Winchell in 1886. [cartographic material]

Author:: Winchell, N. H. (Newton Horace), 1839-1914
Publisher:: Geological and Natural History Survey of Minnesota
Subject:: Geology
Spatial Coverage:: Minnesota and Minnesota.
Language:: English
Format:: cartographic image
Year:: 1887
Date Issued:: 2002-06-01T04:00:00Z
Date Modified:: 2017-03-07T22:14:42Z
Library Catalog Record:: https://search.library.yale.edu/catalog/3336473
Digital Collections Record:: No Digital Collections record

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