Industrial mineral site no. 244, known as "Boardman" is a site in Clark County, Washington. This site has been associated with refractory clays and shales. A notation found in DGER Bulletin 37 on page 25 says "Red and gray high-alumina claystone", and designates the value as "Warrants investigation. Gray clay has cone fusion of 34-35; red clay, less than cone 30".