File Survey 1956; print 1956; reprint 1958, 1956-1958 green overprint In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer » Onekama N4415 W8600
File Ontonagon N4645 W8W915 In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer
File Survey 1955; print 1955; reprint 1956, 1955-1956 green overprint In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer » Ontonagon N4645 W8W915
File Survey 1955; print 1955; reprint 1966, 1955-1966 green overprint In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer » Ontonagon N4645 W8W915
File Otsego Lake N4445 W8430 In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer
File Survey 1949; print 1949; reprint 1954, 1949-1954 green overprint In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer » Otsego Lake N4445 W8430
File Passage Island N4800 W8815 In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer
File Survey1895 print, 1895 In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer » Passage Island N4800 W8815
File Survey 1895; print 1895; reprint 1909, 1895-1909 In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer » Passage Island N4800 W8815
File Survey 1895; print 1895; reprint 1933, 1895-1933 In: Topographic Quadrangle Maps, 1895-1994 » 15 Minute, Scale 1:62,500 » Maple City-Schaffer » Passage Island N4800 W8815