Geological map of Ishpeming area (Marquette County, Michigan)

Date

• ca. 1894

Summary

• Hand-drawn map of Township 47 North, Range 27 West, NW quarter (Marquette County, Mich.). Accompanies descriptions in notebooks numbered 114, 115, 116, 119, 120, 121, 122, 123, 128, 132, 149, and 172. Colored drawings illustrate geological and natural features, including elevation and locations where geological samples were taken. Features include Lake Cooper, Rock Lake (labeled Lake Corning on the map), and the D.S.S. & A. Railway.