Yes, that is the same US 31 that travels down to Indiana and within four miles of where my friend Dave Norris lives in Indianapolis. He calls that venue Meridian Street. This junction point is just outside the City of Ludington, Michigan. US 10 from Ludington goes into Scottville along with US 31 where the latter moves northward to Manistee, Michigan, and beyond.
US 31 is a divided highway all the way to Indianapolis from Ludington. I travel it whenever I head down to see David. Indiana, though, has very few rest stops which is not the case in Michigan. I don’t know why Indiana lacks in that area.
From Muskegon to Ludington on US 31 the highway is often divided by areas of forest so that one cannot see the other side of the highway at all. It’s a great way to travel!