Rentschler Forest Preserve is a 360-acre multi-use park north of Hamilton in Fairfield Township. The park, maintained by MetroParks of Butler County, is on the east bank of the Great Miami River at the north end of Reigart Road, which runs west from Hamilton- Middletown Road (Ohio 4). Enter from 5701 Reigart Road. Within the park is a remnant of the Miami-Erie Canal. The park began in 1964 with the gift of land from Walter A. Rentschler and Edith Beckett Rentschler.