Industrial mineral site no. 1481, known as "Carbonate Lake" is a site in Grant County, Washington. This site has been associated with sodium carbonate. A notation found in DGER Bulletin 37 on page 96 says "Area of 15 acres. Contained 28,600 tons of mixed crystalline salts, of which 24,500 tons were sodium carbonate. Brine contained 42,600 tons of mixed salts, of which 22,100 tons were sodium carbonate", and designates the value as "Now destroyed as a saline lake by the U. S. Bureau of Reclamation in connection with canal construction for the Columbia Basin irrigation project".
