1882
1:507k
1880
British Authorities
1:523k
1884
British Admiralty
1:530k
1880
British Authorities
1:523k
1853
Hydrographic Department, Ministry of Marine
1:510k
1880
1:507k
1894
1:200k
1849
Alaskan Boundary Tribunal
1:880k
1880
Dawson Brothers
1:3m
1880
1:507k