Industrial mineral site no. 1564, known as "Morton (B)" is a site in Lewis County, Washington. This site has been associated with sandstone. A notation found in DGER Bulletin 37 on page 124 says "sandstone containing 84.2 percent silica and 1.8 percent ferric oxide. Washed sample gave spotted gray fusion at cone 14", and designates the value as "Possibly commercial".