Item is a map showing the Pacific Coast of British Columbia and Washington and Oregon states as surveyed by French explorer Jean-Francois de Galaup (Laperouse) in 1786, and the routes of his ships Astrolabe and Boussole. The map shows the Pacific coastline from Cap Rond (Tillamook Head) in Oregon at latitude 45 degrees and 40 minutes in the south to Baeie de Clonard (Beresford Bay, northwestern tip of Haida Gwaii) in British Columbia at latitude 54 degrees and 10 minutes in the north. Other major place names on the map include Nootka, Pointe Boisee, Baie St. Louis, Iles de Sartine, Mont Fleurieu, Cap Fleurieu, Cap Hector, Mont de la Touche, Baie de la Touche, and Baie de Clonard. Vancouver Island is shown as part of the mainland. Map includes latitudes and longtitudes as well as indication of elevations. Map is a plate from the "Atlas de Voyage de la Perouse".