The Salish Sea and the Strait of Georgia dominate this coastal expanse, capturing the maritime geography of the Pacific Northwest in the early twenty-first century. The map focuses on the submerged topography of the Alden Bank, a notable bathymetric feature within these shared waters. Along the southern edge, a diagonal boundary line marks the division between Whatcom County and San Juan County, tracing a administrative path through the open water. A small sliver of shoreline in the northeast corner near t39n r1w indicates the transition to terrestrial survey grids, though the primary character of this sheet is defined by its vast aquatic reaches and the essential international and regional waterways that serve the Salish Sea ecosystem.
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This is the sole edition of this map. No revisions or reprints were ever made.
1907 · Blaine
USGS Topo · 1:62,500
1943 · Orcas Island
USGS Topo · 1:62,500
1943 · Anacortes
USGS Topo · 1:62,500
1951 · Anacortes
USGS Topo · 1:62,500
1952 · Birch Point
USGS Topo · 1:24,000
1952 · Lummi Bay
USGS Topo · 1:24,000
1952 · Blaine
USGS Topo · 1:24,000
1952 · Blaine
USGS Topo · 1:62,500
1957 · Orcas Island
USGS Topo · 1:62,500
1957 · Victoria
USGS Topo · 1:250,000