Ives, WilliamBlueprint.; North oriented to the left.; Originally published on 1 sheet.34 x 122 centimeters, sheets 45 x 79 centimeters and 45 x 55 centimetersJPEGUMN_ALMA:9946828030001701eng(Michigan?)PublicMap of Isle Royale, Lake Superior, Michigan : surveyed in 1846-1847MapsMichigan1847?University of Minnesota