4843 - Head of St Mary's Bay | Marine Navigation Map

The Canadian Hydrographic Service (CHS) Chart 4843 is an official, high-precision marine navigation chart engineered for commercial shipping fleets, passenger ferries, and regional fishing operators traversing the southeastern waters of Newfoundland. Published at a highly detailed, localized scale of 1:40,000, this authoritative nautical asset provides critical "ground-truth" coastal data required for safe passage planning, shallow-water maneuvering, and routing through the innermost reaches of the Head of St. Mary's Bay, including vital thoroughfares near Salmonier Arm and Colinet Harbour.

Key Features & Hydrographic Data Included:

• Detailed High-Resolution Bay Mapping: Delivers continuous, intricate charting across the upper reaches of St. Mary's Bay, highlighting critical channels, minor inlets, and port approaches along the Avalon Peninsula.

• Official Bathymetric & Seafloor Data: Packed with precise localized depth soundings, shifting seafloor contour transitions, low-tide marine benchmarks, and hazard indicators essential for managing safe draft clearance and secure anchoring.

• Essential Aids to Navigation: Explicitly details all official maritime buoys, powerful coastal light stations, range indicators, daybeacons, and prominent shoreline topography to guarantee high-visibility situational awareness during heavy Atlantic fog or night transits.

• Premium Multi-Light Legibility: Printed with vibrant, high-contrast marine inks specifically engineered to maintain absolute clarity under direct pilot house sunlight or dim red-light night-deck setups.

• Legal Vessel Compliance: Fully satisfies international SOLAS (Safety of Life at Sea) carriage regulations and Canada Shipping Act mandates for commercial and recreational vessels requiring official hydrographic documentation.