Ads, Breaking News, Entertainment, Outdoor Life, This Just In!, Travel St. Mary’s County Fair Sept. 24-27th – 4-H livestock shows, horse & tractor pulls, rides, exhibits!! Full Program Posted onAugust 27, 2015September 29, 2015 St. Mary’s County Fair Sept. 24-27th – 4-H livestock shows, horse & tractor pulls, rides, exhibits!! Full Program