Reconnaissance of The Western Coast of The United States, Middle Sheet, From San Francisco to Umpquah River United Kingdom and landmarks are shown on

and landmarks are shown on all three detail sketches

Many aids to navigation are also shown with lighthouse locations

by Elliot's Key and Sands' Key

Coast Survey chart showing primary places

Etching is printed on laid paper and applied to canvas (linen-backed)

Reconnaissance of The Western Coast of The United States, Middle Sheet, From San Francisco to Umpquah River United Kingdom and landmarks are shown onThis is a detailed chart of the Coast of Northern California and Oregon, from San Francisco north to the Umpquah River entrance, showing nice coastal topographical details (hachures), rivers, and other locations. Depth soundings, various points, ports, and anchorages are noted along the coastline. Twelve very nicely detailed elevation views of points along the coast are shown, including Cape Arago, Cape Blanco, Robers River, Mark's Arch and Reef,