Mussel 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.
It 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 52.8258°N -128.3961°W.[1] Poison Cove at 52.9058°N -128.0333°W[2] being the location where the mussels were harvested.[3] A creek northwest into that cove is Poison Cove Creek.[4] [5]