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This is a detailed navigational chart showing the whole of the Pacific Northwest, stretching from northern California to southern British Columbia. Many minor coastal and riverine towns are labeled, including some that would become major cities, such as Portland, Tacoma, Seattle, Victoria, and Everett. The many San Juan Islands are shown and labeled, with the southern portion of Vancouver Island shown in detail. The map was designed to be a working navigational chart, and as such includes a vast amount of detail along the coast. Away from rivers, only railroads and major mountains are named inland.

Seven inset maps are provided. These show Cape Flattery (northwesternmost tip of mainland Washington), Grays Harbor (mouth of the Chehalis), the entrance to the Umpqua, Coos and Yaquina Rivers, Orford Reef, and Humboldt Bay. These provide an additional level of detail in areas particularly challenging to navigate. Additionally, a view of Cape Flattery, as seen from the ocean, is shown.

The map shows soundings, reefs, currents, buoys, lighthouses, bottom sediment, and many other details of use to the navigator. Additional notes further interest to the chart. A note in Grays Harbor notes the seasonal changes of bar depths, an intriguing sedimentological observation. Further notes describe lighthouses that have been destroyed or passages that should not be used for various reasons. A note in the upper right measures the tides at various localities. 

As with all British Admiralty charts, this map provides a wealth of information while preserving a simple and attractive design. It focuses on a particularly desirable area, showing the coastal Pacific Northwest in its entirety.

Condition Description
Very minor toning, otherwise VG+.
British Admiralty Biography





