amed in 1792 by Robert Gray for his ship, Columbia Rediviva, the little that was known of this river was actually attributable to the efforts of an Englishman, Lt. William R. Broughton in service of his captain, George Vancouver, in command of the Discovery.

In a cutter (or jolly boat) and a larger launch from the armed-tender Chatham anchored at Grays Bay, Broughton and a portion of his crew rowed up the Columbia in late October 1792 as far as Cottonwood Point near present Washougal, Washington.

Broughton's geographic insights, as conformed and distributed by his fellow Briton, the influential cartographer Aaron Arrowsmith, found their way into the map prepared by Nicholas King at the request of Jefferson's Secretary of the Treasury, Albert Gallatin, for Lewis's use in the field.