
Navigate the vital crossroads of the British Columbia Central Coast with the professional authority of the Canadian Hydrographic Service (CHS). Chart 3938 is the definitive 1:40,000 scale navigational guide, providing the high-resolution data required to safely move through the deep-water corridors of Seaforth Channel and the labyrinthine passages of northern Queens Sound.
Seaforth Channel is a critical segment of the Inside Passage, utilized by BC Ferries, cruise ships, and commercial tugs. CHS Chart 3938 provides the "ground-truth" data required for safe pilotage in this high-traffic zone:
The Seaforth Transit: Features high-resolution mapping of the primary east-west corridor leading to Bella Bella and Shearwater, ensuring safe passage through areas with significant tidal influence.
Ivory Island & Landmark Detail: Detailed mapping of the Ivory Island light station area, a crucial landfall marker for mariners entering from the open coast.
Technical Island Passages: Provides the granular resolution necessary to navigate Joassa Channel, Gunboat Passage, and the rocky fringes of the Bardu Expedition area.
Hazard & Anchorage Intelligence: Explicitly marks drying reefs, kelp forests, and seafloor composition, vital for identifying secure anchorages in the sheltered coves of Denny Island and Don Peninsula.
As the primary resource for vessels transiting between the Milbanke Sound approaches and the sheltered inner reaches of the Great Bear Rainforest, the reliability of Chart 3938 is paramount. Specifically designed to meet the rigorous requirements of marine navigation, this official CHS chart delivers the accuracy and detail needed to navigate the heart of the Central Coast with total confidence.
| Feature | Details |
| Chart Number | 3938 |
| Region | Pacific Coast (Central Coast BC / Bella Bella) |
| Scale | 1:40,000 |
| Dimensions | 36" x 46" (Standard Paper Size) |
| Publisher | Canadian Hydrographic Service (CHS) |
| Key Coverage | Seaforth Channel, Queens Sound, Ivory Island, Joassa Channel |
| Compliance | Meets official carriage requirements for safe marine navigation |