3920 - Nass Bay, Alice Arm & Approaches Nautical Chart

The Northern Frontier: 3920 - Nass Bay, Alice Arm & Approaches

Navigate the dramatic and deep-water fjords of the North Coast with the professional authority of the Canadian Hydrographic Service (CHS). Chart 3920 is the definitive large-scale "road map" for mariners, providing the high-resolution data required for safe passage into Nass Bay, Alice Arm, and the strategic waters of Observatory Inlet.

Precision for Fjord Navigation and Indigenous Waterways

This region is characterized by steep-walled inlets, significant freshwater discharge from the Nass River, and historic industrial sites. CHS Chart 3920 provides the "ground-truth" data required for safe pilotage:

• Nass Bay & River Entrance: Features the resolution necessary to navigate the complex silting and tidal influences at the mouth of the Nass River, serving the community of Gingolx (Kincolith).

• Alice Arm & Hastings Arm Detail: Detailed bathymetry for the upper reaches of Observatory Inlet, providing safe leads to the historic sites of Anyox and the community of Kitsault.

• Fjord Anchorage & Seafloor Intelligence: Shows precise water depths and the nature of the sea bottom (silt, rock, or mud), vital for selecting secure mooring in these extremely deep, narrow waterways.

• Hazard & Infrastructure Identification: Explicitly marks drying reefs, abandoned pilings, and modern navigational aids, ensuring situational awareness for resource transport, eco-tourism, and local transport.

The Professional Standard for Observatory Inlet Safety

As the primary navigational resource for the northernmost coastline of BC before the Alaska border, the reliability of Chart 3920 is paramount. Specifically designed to meet the rigorous requirements of marine navigation, this official CHS chart delivers the accuracy and detail needed to explore the Nisga’a traditional marine territory with total confidence.