
Navigate the high-walled sanctuary of the North Coast with the professional authority of the Canadian Hydrographic Service (CHS). Chart 3984 is the definitive 1:40,000 scale navigational guide for the southern reaches of Principe Channel, providing the high-resolution data required for safe transit through this critical protected waterway.
Principe Channel serves as a primary "Inside" route for vessels seeking refuge from the exposed Hecate Strait. CHS Chart 3984 provides the specific intelligence needed for safe pilotage in these technical waters:
Nepean Sound & Otter Passage: Features high-resolution mapping of the southern entrance to the channel via Nepean Sound and the high-current waters of Otter Passage.
Banks Island & Pitt Island Shorelines: Detailed bathymetry for the eastern shore of Banks Island and the western edge of Pitt Island, identifying the safe leads required for deep-draft vessels.
Petrel Channel Junction: Provides the strategic data required to navigate the southern intersection with Petrel Channel, a vital branching point for local traffic.
Hazard & Anchorage Identification: Explicitly marks drying reefs, kelp beds, and the rare secure anchorages found within the smaller bays and inlets along the channel walls—essential for vessels waiting out weather.
As the primary navigational resource for tugs, commercial fishers, and long-range cruisers moving between Caamaño Sound and Chatham Sound, the reliability of Chart 3984 is paramount. Specifically designed to meet the rigorous requirements of marine navigation, this official CHS chart delivers the accuracy and detail needed to traverse the Principe corridor with total confidence.
| Feature | Details |
| Chart Number | 3984 |
| Region | Pacific Coast (North Coast BC / Principe Channel) |
| Scale | 1:40,000 |
| Dimensions | Approx. 36" x 48" (Standard Large Format) |
| Publisher | Canadian Hydrographic Service (CHS) |
| Key Coverage | Principe Channel (South), Nepean Sound, Banks Island, Pitt Island |
| Compliance | Meets official carriage requirements for safe marine navigation |