The man who drowned in Cass Lake in northern Minnesota has been identified as Jon Patrick Koehmstedt, 41, of North Dakota, by the Cass County Sheriff’s Office.
An online obituary said Koehmstedt was a father of two and worked as an assistant high school principal in Grafton, N.D.
The Sheriff’s Office received reports of the drowning at 5:50 p.m. Saturday. Koehmstedt exited a pontoon boat to address a boat motor problem and did not resurface, according to a news release.
Koehmstedt’s body was found shortly before 8 p.m.
![Rising above the treeline (Top of this photo), on the shore of Birch Lake, the Twin Metals Copper Nickel Mine Plant site and Tailings Management site is part of the proposed plan. ] In theory, the copper-nickel mine Twin Metals wants to build in the headwaters of the Boundary Waters Canoe Area Wilderness is a zero-discharge mine -- a closed loop that will endlessly recycle millions of gallons of water, including rainwater and the polluted process water it uses to extract ore and](https://arc.stimg.co/startribunemedia/YHBTRGPTHTAE2QDYTS6YZ24OS4.jpg?&w=436&ar=3:2&fit=crop)
