4405 - Pictou Island to Tryon Shoals Navigation Chart (Northumberland Strait)

Master the central corridor of the Northumberland Strait with the Canadian Hydrographic Service (CHS) Nautical Chart 4405. This official marine chart provides expansive coverage of the vital waters between Pictou Island, Nova Scotia, and Tryon Shoals, Prince Edward Island. Mapped at a detailed 1:75,000 scale, Chart 4405 is the primary navigational tool for mariners transiting the narrowest section of the strait, where precise navigation is required to manage the shifting sandbars and strong tidal currents.

As an official CHS publication, this chart is indispensable for cross-strait transit. it features high-resolution bathymetric soundings (in metres) that clearly define the deep-water shipping lanes and the extensive shallow flats of Tryon Shoals. The chart provides critical detail for the approaches to Charlottetown Harbour and the coastlines of both PEI and Nova Scotia. Key navigation aids, including the Prim Point Light, Pictou Island Light, and the range lights of the central strait, are accurately positioned to ensure safe passage day or night. Updated to the latest Notice to Mariners (NTM), Chart 4405 is a mandatory resource for commercial shipping, ferry operators, and recreational sailors navigating the beautiful but complex waters between the mainland and the Island.

Technical Specifications

• Chart Number: 4405

• Scale: 1:75,000

• Region: Northumberland Strait (Nova Scotia / PEI)

• Coverage: Pictou Island, Caribou Harbour, Wood Islands (PEI), Prim Point, Hillsborough Bay, and Tryon Shoals.

• Dimensions: Approximately 34" x 46" (Standard large format).

• Format: Printed on heavy-duty kraft paper; meets official carriage requirements for vessels in Canadian waters.

Key Navigation Features

• Tryon Shoals Detail: specialized mapping of the extensive shoals off the PEI coast, vital for vessels transiting the northern side of the strait.

• Charlottetown Approaches: Detailed bathymetry for entering Hillsborough Bay and the channel leading to the provincial capital.

• Ferry Route Guidance: Includes markings and data relevant to the Wood Islands-Caribou ferry crossing.

• Aids to Navigation: Precise positioning for the major lights at Prim Point, Wood Islands, and Pictou Island.

• Safety Information: Identifies submerged obstructions, fishing zones, and the specific tidal characteristics of the central strait.