the ten-tom starts at pickwick lake on the tennessee river and ends @ the gulf of mexico in Mobile, Al. It is segmented by a lock and dam system that creates pools or lakes which make commerce or barge traffic possible. these locks and dams are controlled by the US army corp of engineers. It is my understanding that the CM tournament is based at the Columbus,MS pool and you can lock up one pool and lock down one pool. There are many sloughs, cuts, old river runs, and oxbows in this river system. The mouths of these places are extemely hazardous as they are constantly changing due to floods and current. There are many, many crappie in this river system. I've caught as many as 100 a day at times. The average is 3/4to1&1/4 lbs with anything over 2 being rare but not non-existant. It's just like any other place, bigger fish seem to group together and it's those bigguns y'all are looking for. I hope this has helped some, be safe and good luck to you all.