New member here trying to collect as much information as I can. I am planning on building a largemouth bass pond that will be around .75 acres. I am in the Southern Kentucky on a very hilly farm. I am going to dam up the bottom end of a small valley with a small spring feeding the pond at the upper end. The hillsides are very steep so the depth at the dam will probably be at least 20 feet even before doing any digging. I have seen where too much depth can mean low oxygen levels and be a dead spot in the pond. Just looking for some insight on this issue. Thanks for the help!