The 500-acre Los Rios Rancho has operated through a greater century as the largest apple orchard in Southern California and the centerpiece of Oak Glen, the heart of a dozen orchards on the southern slopes of the San Bernardino Range about eight miles from Yucaipa. Los Rios Rancho is owned by the Wildlands Conservancy, a privately funded corporation headquartered at Oak Glen since 1996 that has purchased more than 750,000 California acres to preserve as natural landscapes for public benefit. The ranch is leased today to the Devon Riley family, which carries on in the tradition of the ranch's...