Video: Music Festivals at the Fairgrounds May 20, 2016 | Norm Music festivals at the Nevada County Fairgrounds. Which ones will you be attending? Music Festivals at the Fairgrounds Categories: Nevada County Fairgrounds.Tags: artists, bluegrass, Bluegrass Festival, California, camping, Celtic Fest, entertainment, Father's Day, festivals, Grass Valley, KVMR, KVMR Celtic Festival, music, music festivals, Music in the Mountains, musicians, Nevada City, Nevada County, Nevada County Fairgrounds, Strawberry, Strawberry Music Festival, The Center for the Arts, vendors, and WorldFest.