Sounds like he went for a walk and got lost. I grew up near Isabella and know the Tomahawk trail well. Not a place you want to get lost as there is plenty of big woods there and it's gets quite cold this time of year. Glad he's OK. Below is story from link...

"Johnson said Hamre's father, David Hamre, said that his son was found about 6:30 p.m. Friday by the cabin owner who spotted him walking out of the brush onto the Tomahawk Trail, a road near Isabella, halfway between Ely and Lake Superior."
"Johnson said Hamre's father, David Hamre, said that his son was found about 6:30 p.m. Friday by the cabin owner who spotted him walking out of the brush onto the Tomahawk Trail, a road near Isabella, halfway between Ely and Lake Superior."