Reverse of the "most" prominent thread. What are the least prominent signed highways that have a McDonald's on them? CA 173 immediately comes to mind which has a McDonald's at Lake Arrowhead Village. CA 173 is somewhat infamous for having the last segment of dirt state highway left in California and definitely is one of the lesser routes in Caltrans inventory. As a kicker the Lake Arrowhead McDonald's doesn't have a drive thru but rather a walk up window.
The McDonalds on M-26 in Houghton? After all, it is 2 miles beyond the end of the earth.
https://www.mlive.com/news/2021/01/how-this-end-of-earth-2-miles-road-sign-became-a-part-of-upper-peninsula-lore.html
Does this McDonald's count as being on CA-173? I suppose it could if Village Road is a private street, but still it's a thousand feet away.
(https://i.imgur.com/lJyglMW.png)
That said, I feel like I'm kind of just shitting in all your threads, and so I wanted to apologize for that.
I foresee a lot of locations being posted where the McDonald's is on the corner of a major route and a much less prominent route, for example this one (https://www.google.com/maps/place/McDonald's/@43.2269727,-77.3236629,240m/data=!3m1!1e3!4m5!3m4!1s0x89d6dab11282f6ef:0xa279e0e70efff5e6!8m2!3d43.2267711!4d-77.3225343) at NY 104 and Slocum Rd.
I'm not sure that type of thing is a good candidate for this thread because the McDonald's is there much more so because of NY 104 than Slocum Rd.