SPRING REGISTRATION: Mercer County Stables March 15 Mercer County Stables will open their private and semi-private lessons beginning Monday, March 15 through Community Pass. Registration will open at 9 a.m. Private Lesson spots are available to everyone regardless of experience. New Rider spots are reserved for students completely new to horseback riding. Advanced Private and Semi-Private spots will be determined by riding experience requirements. Registration code needed to register for these lessons. If applicable, call (609) 730-9059 x 404 by Friday, March 12.