Multiple Pages. Same Content. One Update?

Need some help if you guys don’t mind.

I have a wordpress install for a company with multiple locations. Each location would have it’s own sub pages but the content from location to location on those pages wouldn’t change. That probably sounds confusing.

So you would hit a landing page with Location A, Location B, Location C and choose one of those locations. Each location could have varying sub pages. Lets say:

Location A
– About Us
– Community
– Directions
– Contact

Location B
– About Us
– Entertainment
– Virtual Tour
– Contact

Location C
– Community
– Directions
– Contact

Is there a way to link those sub pages of the 3 locations so that if I were to update one “About Us” page it would update all of them simultaneously? My problem is a little more involved then the example above. I probably have 300+ pages and most of those are duplicates of each other, so it would definitely help to only have to update these pages once.