Seal Cove and Head of Kasaan Bay

1907

C&GS

1:20k

Topography of Kassan Peninsula Prince of Wales Island

1911

1:63k

Sheet No. 6. (Clarence Strait, Kasaan Bay, Wales Island, Tlevak Strait).

1904

Alaskan Boundary Tribunal

1:160k

Clarence Strait

1886

C&GS

1:200k

Behm Canal and Clarence Strait

1882

US Ex. Ex.

1:509k

Port de Bucarelli.

1797

Mourelle de la Rua, Francisco Antonio, 1750-1820

1:107k

Clarence Strait Revillagigedo Channel and Portland Canal

1893

C&GS

1:200k

Clarence Strait : Revillagigedo Channel and Portland Canal

1916

1:200k

International Boundary, From Cape Muzon to Mount St. Elians, Sheet No. 5

1927

International Boundary Commission

1:250k

Clarence Strait : Revillagigedo Channel and Portland Canal

1894

1:200k