Minnesotian: "
Additionally, you can check in with Tuscarora Lodge and see if you can park at their location. It is right on Round Lake as well. That is where I have parked in the past for winter trips out of Round Lake. "
As have I. There's a self-permit station on the side of one of their outbuildings right near the landing. They do have some visitors/other groups during the winter so just shoot them an email and they'll let you know if it's alright.