Burt, William Austin, 1792-1858Hall, Martin M.Martin, Elias C.A survey map of the central section of Duncan Township in Houghton County, Michigan, measured between 1846 and 1851.JPEG2000fdda0a4b-004d-41de-ade1-897877a2f5d7MI-T048N-R036WengDepartment of Natural Resources8888-003Public48N 36W - Survey Map of Duncan Township, Houghton County [Michigan]MapsMichigan--HoughtonT048N-R036W1846