Foster, J. W. (John Wells), 1815-1873Hill, S. W. (Samuel Worth), 1815-1889P.S. Duval & Co.Schlatter, Wm. (William)Whitney, J. D. (Josiah Dwight), 1819-1896Relief shown by spot heights and hachures; depths shown by soundings. Shows mineral lands, mines, and furnaces. Appears in: Jackson, Charles T. Report of the geological and mineralogical survey of the mineral lands of the United States in the state of Michigan. Washington, 1849. between p. 624 and 625. 1 map: hand col.; 28 x 56 cm.JPEG8880dabc-8d61-4fed-806d-55fbd0a40610engPublicGeological map of Keweenaw Point, Lake Superior, Michigan; by J. W. Foster & J. D. Whitney; S. W. Hill and W. Schlatter, assistants.MapsMichigan--Keweenaw PeninsulaMichigan1849University of Michigan