White Oak in Mahaska county? More of a pond than a lake about 15 acres.I live about 15 min away.Used to fish it years ago nice gills and a few crappie, a good place to go and catch a few for supper. Then the word must have gotten out that it was a hot spot because tons of people (some from 3 hours away) started showing up and the bucket filling began. I quit going there and went down the road to Belvedere. Last time I fished there was 4 yrs ago and caught one 9 inch bluegill, so I don't have a recent report. You don't know until you go so it might be worth a try.