Craig, Hal D.A survey map of an island in Tobin's Harbor off of Houghton Township in Isle Royale County, Michigan, measured in 1927.JPEG2000f6184502-fadf-46ad-a40e-e58973a9d4cdMI-T066N-R033WengDepartment of Natural Resources8888-003Public66N 33W - Survey Map of Houghton Township, Isle Royale County, page 5 [Michigan]MapsMichigan--Isle RoyaleT066N-R033W1927