Every Memorial Day Weekend Mule Days Celebration Tri-County Fairgrounds, Bishop Our most famous event! Concerts, parades, a rodeo, and lots of mules!  760-872-4263 www.muledays.org Memorial Day Weekend Mule Days Arts & Crafts Fair at the Bishop City Park, sponsored by the Inyo Council for the Arts.  760/873-8014. www.inyo.org.