Douglas Channel is one of the principal inlets of the British Columbia Coast. Its official length from the head of Kitimat Arm, where the aluminum smelter town of Kitimat to Wright Sound, on the Inside Passage ferry route, is 90 km (56 mi). The actual length of the fjord's waterway includes waters between there and the open waters of the Hecate Strait outside the coastal archipelago, comprising another 60 km (37 mi) for 140 km (87 mi) in total.