The shortest route is going through the US south of the Lake Michigan, but this still doesn't explain how they ended up in Southeast Manitoba, and especially of

The shortest route is going through the US south of the Lake Michigan, but this still doesn't explain how they ended up in Southeast Manitoba, and especially off of Highway 12. Also important to know that Google Maps sometimes draws roads where there aren't actual roads - there are trails that are marked like they are roads in a few places that I know about and I've attempted to get Google to correct them because a) it's private property and b) it's not safe to travel there in the winter.