The Park System Headquarters are located in this 667 acre park, which was established in 1968 with a donation of 215 acres from the estate of Geraldine Livingston Thompson.
The park features several areas with names that remind visitors about its rich history. The Estate Grounds section includes the beginnings of a beautiful Memorial Tree Grove and the site of the former Geraldine and Lewis Thompson mansion. The Old Orchard area provides easy access to the 14 miles of trails within the park and is reminiscent of the former Thompson family apple orchard. The Filly Run area is home to the park's playground and also provides access to the park trails, specifically the 4.9 mile paved trail loop. The Three Barn section is named for the two large horse barns (now Theatre Barn and Activity Barn) and a cow barn
Thompson Park has opportunities for varied recreational interests including 14 miles of multiple-use trails (4.9 miles paved), a playground, tennis courts, a fishing lake for canoes/kayaks and electric-powered boats, a seasonal group picnic facility, Creative Arts Center, and off-leash dog area.