Mussel InletMussel Inlet is in inlet in the North Coast region of the Canadian province of British Columbia. It is a northeast extension of Sheep Passage, and part of the Fiordland Conservancy.Name origin and historyIt was first charted in 1793 by James Johnstone, one of George Vancouver's officers during his 1791-95 expedition. It was here the men ate mussels that poisoned and killed one of them, John Carter, for whom Carter Bay is named; it is at the junction of Finlayson Channel and the west end of Sheep Passage at. Poison Cove at being the location where the mussels were harvested. A creek northwest into that cove is Poison Cove Creek.