Founders Park Sports Complex in Lake Saint Louis, Missouri is located at 7 Freymuth Road. It has 6 baseball fields varying in size and 2 official sized soccer fields that are all available for rent. The park has 2 playgrounds, a half basketball court, and a pavilion all available for public use, but they are not available for rent. For sports field rental information scroll down. Founders Park also serves as one of the host sites for the New Horizons Youth Baseball/Softball League, which plays in the spring and fall. For more information on leagues view the "Adult and Youth Leagues" section of our site.