
Navigate the vibrant marine corridors of Northern Vancouver Island with the professional authority of the Canadian Hydrographic Service (CHS). Chart 3546 is the definitive "road map" for mariners, providing the high-resolution 1:40,000 scale data required for safe transit through Broughton Strait, a vital link between Johnstone Strait and the Queen Charlotte Sound.
Broughton Strait is a high-traffic zone where BC Ferries, commercial logging vessels, and recreational cruisers converge. CHS Chart 3546 provides the "ground-truth" data required for safe pilotage in these technical waters:
Comprehensive Harbour Coverage: Features detailed mapping for the essential supply hubs of Port McNeill and Alert Bay (Cormorant Island), ensuring safe approach and docking.
Strategic Channel Data: Detailed bathymetry for Cormorant Channel, Haddington Passage, and the waters surrounding Malcolm Island, vital for avoiding the region's complex shoals and rocky reefs.
Island Group Navigation: Provides the necessary data for entering the southern edge of the Broughton Archipelago Marine Provincial Park, including the Pearse Islands and Plumper Group.
Hazard & Current Awareness: Explicitly marks submerged hazards, local aids to navigation, and the tidal characteristics of the strait, helping mariners manage the strong currents often found near Haddington Island.
As the primary reference for one of the most active marine hubs on the coast, the reliability of Chart 3546 is more vital than ever. Whether you are a commercial operator serving the coastal communities or a recreational explorer venturing into the Broughton Archipelago, this official CHS chart delivers the accuracy and detail needed to navigate from port to port with total confidence.
| Feature | Details |
| Chart Number | 3546 |
| Region | Pacific Coast (Vancouver Island North / Broughton Strait) |
| Scale | 1:40,000 |
| Dimensions | 36" x 48" (Standard Paper Size) |
| Publisher | Canadian Hydrographic Service (CHS) |
| Key Coverage | Port McNeill, Alert Bay, Malcolm Island, Haddington Island, Pearse Islands |
| Compliance | Meets official carriage requirements for safe marine navigation |