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2014 Map of Sucia Island

Name: 2014 Topographic Map of Sucia Island
Creator: U.S. Geological Survey
Published: 2014
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2014

About this map

Patos Island and the horseshoe-shaped Sucia Island anchor this maritime survey at the junction of Puget Sound, Boundary Pass, and the Strait of Georgia. Located within the San Juan Islands, these landmasses represent a critical navigational threshold near the international border. The survey highlights the complex coastline of the archipelago, including Echo Bay, Shallow Bay, and Fox Cove, alongside prominent landmarks like Patos Light at Alden Point.

A notable boundary line for Whatcom and San Juan Counties bisects the water, roughly following the path of the Alaska Marine Hwy. The map provides detailed coastal topography for several smaller satellites, such as Justice Island, Ewing Island, and the elongated North Finger Island. From the elevation at Lawson Bluff to the treacherous Clements Reef, the sheet details the intricate shoreline and surrounding banks that have long defined the passage for Pacific Northwest mariners.