I would call kurts island in Minocqua they would best the latest reports for rhinelander.
I put up the latest report from Kurt’s just a moment ago… I am fan of having people come to my area to fish!!! We have one of the best areas to fish in the U.S. according to Field and Stream from a few years ago and it hasn’t gotten worse. But I am not a big fan of traveling so far and might have you consider the Madison area…
Last I heard Koshkonong had frozen, there were guys on Mud Lake on the Madison chain. Kosh has good ‘eye fishing, but is a tough nut to crack and I am not sure anything in the Madison area has solid enough ice to attack.
I might consider contacting Randy Weiland, Joel Ballweg, Jeff Bennett or Adam Rasmussen. Randy is a frequent contributor and fishes the southern part of the state up to the Wolf R. I have fished with him up here and he is obsessed with getting his clients fish. Joel fishes Lake Wisconsin, Jeff Bennett fishes from there over to the Winnebago area & Adam has a report up on the front page in the upper left. He would have great knowledge of ice fishable waters in the central part of the state. My brother has open water fished with Joel and considers it to have been a bvery valuable day of learning and catching walleyes and saugers.
Mark