Ives, WilliamA survey map of Island No. 12 of the Isle Royale Group near Houghton Township in Isle Royale County, Michigan, measured between 1847 and 1934.JPEG20002937621e-2b85-40b1-b5ae-b5aa2ce6274aMI-T067N-R033WengDepartment of Natural Resources8888-003Public67N 33W - Survey Map of Islands, Houghton Township, Isle Royale County, page 3 [Michigan]MapsMichigan--Isle RoyaleT067N-R033W1847