I believe the minimum length in 21" and in my experience that is about 5% of the lakers caught. You'll have good action all day but might not even be allowed to keep any if you wanted to. I haven't seen a salmon come out of there in ten years myself either. IMO this lake is good for taking someone icefishing for the first time to get some frequent action on 15-20" fish. otherwise, better off going elsewhere for chance at something decent.