Frances Slocum State Forest is for day-use only. It is approximately 5 miles southeast of Peru and north of the Mississinewa Lake dam. The state forest encompasses 515 acres of contiguous forested landscape along the northern bank of the Mississinewa River. While once a larger state forest, some acreage was used during construction of the reservoir.

Most of this land was purchased between 1938 and 1941. A 20-acre parcel was added in 1992.