1973
NOS Lake Survey Center
1:120k
1946
Shane, Ralph M. ; Grand Portage Band of Chippewa Indians
1929
International Boundary Commission
1:24k
1929
International Boundary Commission
1:24k
1973
U.S. Lake Survey
1:1m
1880
US NAVY HYDROGRAPHIC OFFICE
1:213k
1935
Arnquist, Kathryn
1:300k
1847
projected and drawn under the direction of George Talcott, by A.B. Gray
1:370k
1973
NOS Lake Survey Center
1:600k
1973
NOS Lake Survey Center
1:600k