Preservation Parks in Delaware County, Ohio, consists of ten ecologically significant parks, all open to the public.
“Our goals are to preserve green space in our rapidly developing county and to provide environmental education to its residents. Because parks add value to our quality of life, Preservation Parks is committed to continuing to acquire and develop additional areas which can enrich the lives and provide clean, safe places for recreation and relaxation for all members of our community.” (source)
More information at: http://www.preservationparks.com/