Piedmont Yarn and Apparel Brick-and-mortar retailer of yarn, crochet and knitting supplies. Offers fiber classes in: crochet, felting, knitting, spinning, weaving, sewing, dying, and more. Website: www.piedmontyarn.com/Phone: 510 595-9595Mailing Address:4171 Piedmont AvenueOakland, CA 94611Date Updated: 7/20/2013