I put together a list of grocery stores, post offices and other businesses along the North Country Trail in Michigan, in gpx format. This is information taken from Google Maps, so confirm that the stores still exist before relying on the maps.
The names of the grocery stores are preceded by the nearest mile waypoint on the trail, and the number of miles and direction from the trail to the store are after the name of the grocery store. The half mile waypoints were downloaded directly from the North Country Trail website. In the download section below, you can also download the pdf map files, which are directly from the North Country Trail website.

​ You may view the map here: https://drive.google.com/open?id=1Zt...jb&usp=sharing

And download the gpx files here: https://drive.google.com/drive/folde...wq?usp=sharing