
Navigate the legendary waters of the Pacific Rim with the professional authority of the Canadian Hydrographic Service (CHS). Chart 3671 is the definitive 1:40,000 scale "road map" for mariners, providing the comprehensive coverage required for safe passage through the vast and intricate waters of Barkley Sound.
Barkley Sound is a complex environment where international shipping, commercial fishing, and world-class recreational boating intersect. CHS Chart 3671 provides the "ground-truth" data required for safe pilotage across the Sound’s three main channels:
Comprehensive Channel Detail: Features critical bathymetry for Trevor Channel, Imperial Eagle Channel, and Loudoun Channel, ensuring safe transit for deep-draft vessels and coastal cruisers.
Strategic Landmark Identification: Clearly identifies the rugged coastlines of the Deer Group Islands and the approaches to the Broken Group Islands, vital for situational awareness in varying weather conditions.
Safety for Port Approaches: Provides the foundational data for approaching the high-traffic hubs of Bamfield and Ucluelet, as well as the entrance to the Alberni Inlet.
Hazard & Seafloor Intelligence: Explicitly marks submerged reefs, shoals, and seafloor characteristics (sand, mud, or rock), providing the reliability needed for secure anchoring and hazard avoidance.
As the primary link for vessels transiting between the open Pacific and the industrial heart of Port Alberni, the reliability of Chart 3671 is more vital than ever. Specifically designed to meet the rigorous requirements of marine navigation, this official CHS chart delivers the accuracy and detail needed to navigate with total confidence.
| Feature | Details |
| Chart Number | 3671 |
| Region | Pacific Coast (West Coast Vancouver Island) |
| Scale | 1:40,000 |
| Dimensions | 36" x 46" (Standard Paper Size) |
| Publisher | Canadian Hydrographic Service (CHS) |
| Key Coverage | Barkley Sound, Trevor Channel, Imperial Eagle Channel, Loudoun Channel |
| Compliance | Meets official carriage requirements for safe marine navigation |