Industrial mineral site no. 38, known as "Chumstick Mountain" is a site in Chelan County, Washington. This site has been associated with asbestiform materials. A notation found in DGER Bulletin 37 on page 7 says "Anthophyllite occurs as a vein less than 1 ft. wide in biotite gneiss", and designates the value as "Exposed by shallow pit. Insufficient quantity for commercial development".
