Industrial mineral site no. 1714, known as "Deep Lake Prospect" is a site in Stevens County, Washington. This site has been associated with barite. A notation found in DGER Bulletin 51 on page 86-88 says "The vein, which is 4 feet wide and parallel to the bedding planes of the slate, consists of barite quartz, and minor calcite. It is medium gray to white, fine grained, and has a sugary texture", and designates the value as "At lease 60 tons of measured and indicated ore and 280 tons of inferred ore are calculated for the Deep Lake prospect".
