TY - BOOK AU - Foster,J.W. AU - Whitney,J.D. TI - Report on the geology and topography of a portion of the Lake Superior land district in the State of Michigan, T2 - 31st Congress, 1st session. Ho. of Reps. Ex. doc. ; no. 69 AV - TN24.M5 F67 U1 - 553/.09774/9 PY - 1850///-51 CY - Washington PB - Printed for the House of Reps. KW - Copper mines and mining KW - Superior, Lake, Region KW - Iron mines and mining KW - Geology KW - Lake Superior region N1 - Pt. 2 has title: Report on the geology of the Lake Superior land district; publisher: A. B. Hamilton; pt. 1. Copper lands.--pt. 2. The iron region, together with the general geology ER -