RVing at the Nevada County Fairgrounds April 5, 2017 | Norm RV camping in the trees at the RV Park at the Nevada County Fairgrounds. Thanks, @spinningourwheels, for the photo share. Categories: Nevada County Fairgrounds and RV Park.Tags: California's Most Beautiful Fairgrounds, camping, events, Fairgrounds, Grass Valley, lets go RVing, local events, Nevada County, Pine Trees, RV, RV Camping, RV Park, and RV Park at the Nevada County Fairgrounds.