
Navigate the complex and high-traffic gateway to the North Coast with the professional authority of the Canadian Hydrographic Service (CHS). Chart 3957 is the definitive 1:40,000 scale navigational guide, providing the high-resolution data required to safely move from the open waters of Chatham Sound into the final approaches of the Port of Prince Rupert.
As the primary marine corridor for international container ships, BC Ferries, and commercial fishing fleets, CHS Chart 3957 provides the "ground-truth" data required for safe pilotage in these technical waters:
The Southern Entrance Corridor: Features high-resolution mapping of the primary deep-water leads passing the Kinahan Islands, ensuring safe entry for large vessels heading toward Fairview Terminal and Ridley Island.
Metlakatla & Venn Passage: Detailed bathymetry for the approaches to the historic community of Metlakatla, including the technical navigation required for Venn Passage.
Ridley Island & Industrial Safety: Provides the resolution necessary to navigate the heavy-industry zones surrounding Ridley Island and Lelu Island, identifying critical depths for deep-draft tankers and bulk carriers.
Hazard & Landmark Intelligence: Explicitly marks drying reefs, prominent navigational lights, and the sophisticated buoy system required to navigate the area's frequently challenging visibility and tidal currents.
Whether you are a professional pilot coordinating global freight or a recreational cruiser arriving from the Inside Passage, the reliability of Chart 3957 is paramount. Specifically designed to meet the rigorous requirements of marine navigation, this official CHS chart delivers the accuracy and detail needed to approach Canada's deepest natural harbour with total confidence.
| Feature | Details |
| Chart Number | 3957 |
| Region | Pacific Coast (North Coast BC / Prince Rupert Approaches) |
| Scale | 1:40,000 |
| Dimensions | Approx. 36" x 45" (Standard Paper Size) |
| Publisher | Canadian Hydrographic Service (CHS) |
| Key Coverage | Prince Rupert Approaches, Chatham Sound, Ridley Island, Kinahan Islands |
| Compliance | Meets official carriage requirements for safe marine navigation |