One of the oldest golf courses in southeast Minnesota, Zumbro Valley Golf Course, is inviting you to celebrate its 100th birthday this weekend. 100-Year Celebration Starts With Family FunThe celebration kicks off Saturday afternoon with a free family event from noon to 4 p.m. FlashMob will take the stage from 7 to 11 p.m. for a free concert open to adults 21 and older. A Few Things to Know Before You GoSaturday won't be a normal day at Zumbro Valley Golf Course. Visit the Zumbro Valley Golf Course website for more event details.