Burt, William Austin, 1792-1858, Higgins, Hiram, Hubbard, Bela, 1814-1896 (1845). 51N 43W - Survey Map of Carp Lake Township, Ontonagon County [Michigan]. Department of Natural Resources. https://michigan.access.preservica.com/uncategorized/IO_ada0178a-a9bc-4cca-909d-62a64aef9910 (map)