I *think* this was on US 20 East, less than 2 miles east of Angola circle, not on CR E 50 N. It was an auto park with one main office building/cafe and a few little white cabins scattered around it -- the sort of place for travelers before hotel chains sprang up. Top of photo is north. Pretty sure I had an iced tea here in the mid-70s.

DDM, I think you're right, and I've noticed that many of the location indicators on the map are wrong. You can move the indicator to the correct location. One of those little cabins is now on my parents' farm, fixed up as a playhouse that's being used by great-grandkids.