Hi Northwoods Ice,
I fished Yellowstone last year through the ice and did a lot of open water fishing this year. There is an unbelievable crappie population in this lake. Most crappies are in the 9-11" range. There's some real nice eyes in here too. A few weeks ago I caught a 20", 23", and 27" all while fishing for crappie. Key is to find the cribs and you'll find fish.
Hope this helps.
Dogfish44