Michigan Highway 217, situated near Elkhart, Indiana, is a tiny north-south connector to a "Route 17" south of Indiana state border. That "Route 17" was a state highway until it was downgraded to "County Route 17" in recent decades. Thus, the southern end of Michigan Highway 217 is the state line, where it becomes that "County Route 17" into the Elkhart area. From there, Michigan Highway 217 runs northerly for only about a mile and a half, before ending at US Route 12. All of Michigan Highway 217 is in southeastern Cass County, Michigan.
My photo of Michigan Highway 217 comes from the northern end of that route, at US Route 12. The northern end marker for Michigan Highway 217 is shown here, communicating to northbound travelers that Michigan Highway 217 will not continue beyond US Route 12. The options of which way to turn onto US Route 12 are described here, too. This photo was taken in February 2019, as I was taking a slightly roundabout way to Grand Rapids, Michigan.