Patos Island and the Sucia Islands archipelago anchor this 2020 topographic survey of the northernmost San Juan Islands. Situated where the Strait of Georgia meets Boundary Pass, these landmasses define a complex maritime environment. Sucia Island itself is characterized by its distinctive finger-like peninsulas, creating protected waters such as Echo Bay, Shallow Bay, and Fox Cove. To the northwest, Patos Island stands solitary with Alden Point and Toe Point marking its extremities. The map reveals the intricate coastline of smaller outcrops, including Justice Island, Harnden Island, and the Cluster Islands. The boundary between Whatcom County and San Juan County bisects the open waters of the Salish Sea, illustrating the administrative division of this northern Washington frontier.
28 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
This is the sole edition of this map. No revisions or reprints were ever made.
1943 · Orcas Island
USGS Topo · 1:62,500
1952 · Point Roberts
USGS Topo · 1:24,000
1952 · Birch Point
USGS Topo · 1:24,000
1954 · Waldron Island
USGS Topo · 1:24,000
1957 · Orcas Island
USGS Topo · 1:62,500
1957 · Victoria
USGS Topo · 1:250,000
1973 · Sucia Island
USGS Topo · 1:24,000
1975 · Bellingham
USGS Topo · 1:100,000
1977 · Eastsound
USGS Topo · 1:24,000
1978 · Mt Constitution
USGS Topo · 1:24,000