I have never fished Fork but that is one lake on my list. With all of the trophy bass in that lake BIG BLUE GILL should be plentiful. Based on their patterns right now Bluegill should be staging for their spawn. Brush piles or stickups that are close to shallow water should be good places to look. Also dock slips or docks in general in water 8 to 10 feet should be good also. This is just general information that I have picked up over the years fishing for em. Good luck and let us know how you do.
Side Note: Hopefully an angler that has fished Fork will reply!.