Complex sentence: On November 22,2013, Knott's Berry Farm made a major announcement for the 2014 operating season; the famous and historical Calico Mine Ride would be closed for a major 6 month refurbishment beginning in January 2014.
Split into simpler sentences: On November 22,2013, Knotts Berry Farm made a major announcement for the 2014 operating season. The park announced that the famous and historical ride, the Calico Mine Ride, would be closed for a major 6 month refurbishment beginning in January 2014.