Still only 1 target remaining. Talked with camp staff this morning (8/27/23) who said (paraphrased) they're hoping for a comeback, but is effectively extinct.
A nine-hole disc golf course, located at the Alum Creek State Park Campground. The course is open to the public. Park in the campground parking lot and stop by the camp store for a map
From Columbus: Take I-71 to Polaris Parkway and head west for 1.8 miles. Make a right (North) on South Old State Road and continue for 6.2 miles. Course/campground will be on the right (East) just before Chesire Road.