The park occupies the former site of the Mount Saint Mary Academy, established by the Sisters of the Dominican Order in 1907.
The park’s arboretum collection is officially recognized and serves as an educational resource for local dendrology study.
The Fox River Trail, which runs through the park, follows the historic route of the Chicago, Aurora and Elgin Railroad.
Several sculptures located throughout the grounds were installed as part of the St. Charles 'Sculpture in the Park' public art initiative.
The riverfront area is a designated spot for local anglers targeting smallmouth bass and channel catfish.
Mount Saint Mary Park is a 27-acre riverside park located along the Fox River in St. Charles, Illinois. The grounds feature extensive arboretum gardens, native prairie restorations, and paved paths suitable for walking and cycling. Recreational facilities include tennis courts, a playground, and designated fishing areas along the riverbank. During winter months, the park provides access for outdoor skating. The site previously served as the grounds for the Mount Saint Mary Academy, a boarding school for girls that operated until 1974. Today, it functions as a community hub managed by the St. Charles Park District, known for its mix of natural trails and manicured sports fields. The park contains a variety of commemorative sculptures and mature trees, making it a focal point for botanical study. It serves as a trailhead for the regional Fox River Trail system.
The pedestrian bridge overlooking the Fox River, providing a panoramic view of the wooded shoreline.
Bring binoculars if visiting in spring or fall, as the diverse tree population attracts significant bird migration activity.
Utilize the designated fishing areas on the north side of the park for better access to the riverbank.
Park near the main entrance to minimize walking distance if carrying sports or picnic equipment.
Attempting to fish in the designated sports field areas; stick to the riverbank zones.
Leash laws are strictly enforced for pets; dispose of waste in provided bins to maintain the arboretum's grounds.