Take zoomed in shots of a Google Map and combine them into one image

I need some help with a Google map so I can print it in detail. It is a custom google map. In order to fit all locations into one image, I have to zoom out a lot. So I want to create an image in photoshop that combines a bunch of zoomed in images, which I can then print in a large format with good detail. It would need to be at the level of detail shown in the attached picture. I do not have all of the necessary screenshots that need to be combined, and so part of the job would be to take those screenshots from the Google Map and then combine them.

https://www.google.com/maps/d/edit?mid=1euk9zUtAPUec1PGN05Fw5yhEo7A&ll=42.01251706007196%2C-88.08400127427825&z=10