Michael Johmann of Louisville, Kentucky recently completed the third documented, unassisted solo swim of the 44.5 km length of Flathead Lake, Montana – the largest freshwater lake in the western United States. Documentation by observer John Fischbach is now published on the MSF Documented Swims site:
- Michael Johmann – Flathead Lake (MSF Documented Swims)
There have been several other claimed Flathead Lake swims. However, these are not officially documented and/or were assisted by wetsuits.