Susan Island is an island in the North Coast of British Columbia, Canada. To its west is Finlayson Channel; to its east Mathieson Channel. Roderick Island lies to its north and Dowager Island to its south. James Johnstone, one of George Vancouver's lieutenants during his 1791-95 expedition, first charted its west and east coasts in 1793.[1][2]
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52°30′00″N 128°21′00″W / 52.50000°N 128.35000°W