If you want to fish there you better make friends with someone who lives on the lake or you will hear gun fire in the air
Judson is not a private lake per se, however all the shore on the Canadian side is privately owned so access is difficult unless you have connections...which I do

. In the span of a couple of hours we caught bass, perch, crappie and catfish in an area the size of a swimming pool. You would be hardpressed to find that kind of abundance in such a small area even in Ontario.
The lake is
heavily weeded. Where we were fishing the weeds had been cleared, however apart from that, you are looking at some very tough conditions.