County Fair with 4-H shows in dairy, beef, swine, sheep and goats as well as 4-H horse shows. Open class shows in dairy, beef, swine and goats. There will also be exhibits in 4-H indoor and open class home arts and farm crops. Rides, contests, live entertainment. Saturday come watch a Rodeo and Truck Pull. At QAC 4-H Park, Dulin Clarke Rd., Centreville. Hours: Monday (opening day) 4-10 p.m.; August 10-14, 9 a.m.-10 p.m. Admission is $2 Monday through Friday and $3 on Saturday. Queenannescofair.com. 410-758-0267.