Michigan Highway 100 is a short north-south route just west of Lansing, serving as the main north-south corridor through Grand Ledge, Michigan. The northern end is an interchange with Interstate 96 north of Grand Ledge. From there, Michigan Highway 100 simply skewers through Grand Ledge to end in Potterville. The southern end, in Potterville, is at Interstate 69.
My photo of Michigan Highway 100 shows the northern end marker at Interstate 96. The end marker faces south, positioned at the northeast corner of the intersection where the westbound ramps to and from Interstate 96 meet the surface road. Technically, the road heading into the background isn't Michigan Highway 100, but you get the idea of what's happening. This photo was taken in April 2021, cutting west to Grand Rapids after a drive around Metro Detroit and the Michigan Thumb.