Reconnaissance of Grenville Harbor Washington Territory Maine and San Pedro are included

and San Pedro are included on the sheet

The more common later editon of 1854 is noted as corrected to 1854

and up to Tomales Bay

A very nice large-scale chart showing Koos Bay and the entrance from the Pacific Ocean

settlements

Reconnaissance of Grenville Harbor Washington Territory Maine and San Pedro are includedChart showing Grenville Harbor and Grenville Point in the Washington Territory. Shows some depth soundings, isolines and explanatory notes. IMPORTANT NOTE: All of our United States Coast Survey (USCS), United States Coast & Geodetic Survey (USC&GS), and similar maps and charts have been professionally unfolded and flattened using humidity baths, semi permeable membrane, and drying blotter techniques. Most others you typically see on eBay have not