David Rumsey
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No. VI, Reconnaissance Map. (Lake of the Woods to Ft. Pembina).
2888.033
pilot2
United States Northern Boundary Commission. No. VI, Reconnaissance Map ... 49th Parallel. (Lake of the Woods to Ft. Pembina).
1878
Twining, W.J.
Government Printing Office
55 × 42 cm
1 : 506880