The following terms, as used in this act, are hereby defined as follows:
"County Forests." Lands owned and retained by a county and organized systematically for the purpose of facilitating proper management for forestry and recreational purposes.
"State Forests." Lands deeded by the county commissioners of a county to the State for organization and management as public forests or recreation areas, the county retaining an interest in all future net financial returns therefrom.
32 P.S. § 170