The RVators have a flyout on July 20th:

“This Saturday we are planning on meeting at Keith Peterson’s for the Sacramento RVators meeting in Grass Valley, His house is on the north side of the runway, when landing on 25 his house is on the right side, there will probably not be enough parking on the right side so you might want to park in the transient parking on the left and walk across the runway, just look for the RVs.”