Mountain Park youth Athletic Association (MPAA est. 1976) 5050 Five Forks Trickum Rd SW, Lilburn, GA30047 The Mountain Park Athletic Association is a non-profit organization devoted to the promotion of youth participation in…More sports. The association offers youth leagues for baseball, football, basketball, softball, cheerleading and lacrosse. Practices and games are at Mountain Park and Parkview Public Schools. The leagues are intended to promote player development, sportsmanship and teamwork. Registrations occur at different times throughout the year and updated information is available on its website.