Well, it’s almost been a year so I updated the Packet map.
Actually, I made a copy of it (preserving historic information) and marked the original read-only.
The new one is titled “Packet Radio Map of Northern Lower Michigan” and ….
…also has a new url: https://drive.google.com/open?id=1n-oq7Z8_DD9gZ4QbETstWjVgAPQ1Gz9e&usp=sharing