Industrial mineral site no. 1326, known as "Cispus River (H)" is a site in Lewis County, Washington. This site has been associated with pumice. A notation found in DGER Bulletin 37 on page 87 says "Road cut exposes, from surface down: 2 in. of soil, 22 in. of pumice, 8 in. of silt, and 24 in. of pumice", and designates the value as "Workable if silt is pumiceous".