1st & 3rd Wednesday Bluegrass at Cooper Mountain Ale works2024-07-112024-07-11https://old.oregonbluegrass.org/wp-content/uploads/2014/01/header-dark.pngOregon Bluegrass Associationhttps://old.oregonbluegrass.org/wp-content/uploads/2014/01/header-dark.png200px200px