From "The Real Frank Zappa Book" (1989): "Cucamonga was a blotch on a map, represented by the intersection of Route 66 and Archibald Avenue. On those four corners we had an Italian restaurant, an Irish pub, a malt shop and a gas station. North, up Archibald, were an electrician's shop, a hardware store and the recording studio. Across the street was a Holy Roller Church, and up the Block from that was the grammar school." The recording studio was of course Paul Buff's "Pal Recording Studio", later renamed as "Studio Z".
In 1977 Alta Loma, Cucamonga, and Etiwanda merged into Rancho Cucamonga.