There was a huge fish kill at Cottontail in late August 2012. The fish you find will be bluegill that survived since then, and maybe some of the offspring of the 30 bass and 870 channel cats that were put in there in the Fall of 2012. Killdeer had a big one about that same time too. You might be better off heading in to Wild Plum or Walnut Creek near Crete. I would walk in to Olive Creek myself...