Grenville Channel

Grenville Channel is a strait on the British [Columbia Coast|North Coast of British Columbia], Canada, between Pitt Island and the mainland to the south of Prince [Rupert, British Columbia|Prince Rupert]. It is part of the Inside Passage shipping route, about long and is wide at its narrowest point.
The Grenville Channel Fault that forms the channel dates back to the Cretaceous Era. Both sides are mountainous and densely wooded, and a linear magnetic anomaly runs parallel to the channel south of 51"30'N.