7368 Archibald Ave., Rancho Cucamonga, CA 91730 | 909-477-2720 What's Going On... Library Catalog Calendar of Events Renew Your Books Online Databases Virtual Reference Desk Welcome to the Virtual Branch of the Rancho Cucamonga Public Library. Please take a moment to check out the services we offer; both at the library and from your home or office computer. (use the menu to the left to guide you ...