Columbia River

Rises in Upper Columbia Lake, lat. 50 deg. 10', long.

115 deg. 50', and flows into Pacific Ocean. Total length about 1150 miles.

Its mouth was discovered by Robert Gray, of Boston, May, 1792, and named

by him after his vessel. It was first reached overland by Lewis and Clark,

in 1805; and first explored throughout its entire length by David

Thompson, of the North West Company, 1807-1811. Its principal branch is

the Kootenay. =Index=: (Sir James Douglas era) Carver's "River of Oregon," 19; Russian

colony projected at, 44; named by Gray, 57; Fraser raised mistaken for,

59; Lewis and Clark on, 67.