Discovery

In 1918 Feldspar was discovered in Hauser Canyon by William Stell of El Cajon and the claims were patented in 1924. These claims were sold to the Standard Sanitary Manufacturing Company in 1925.

Feldspar was trucked to the Mill and ground to a fine powder (200 mesh). It was then loaded into railroad cars and shipped to Richmond, California to make Porcelain. Porcelain is used to make bathroom tubs, sinks, and toilets. The Feldspar was also used to make glass, pottery and soap.