According to the BCGNIS, the northern boundary of Queen Charlotte Sound is defined as a line running from the southernmost point of Price Island to Cape St James on Kunghit Island, the southernmost point of Haida Gwaii.
According to the BCGNIS, the northern boundary of Queen Charlotte Strait is defined as a line running Cape Sutil, at the north end of Vancouver Island, to Cape Caution on the mainland.
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