J Paul Hawthorne started this fun little exercise for all of us genealogists. Map where your ancestors were born in a tree. (Template here)
You can understand why my research focuses in Virginia, North Carolina, and South Carolina:
To change it up a bit, I broke it down into counties as well:
It’s a fun little exercise!
cluster genealogy 
These are great!
Excellent idea!!!
this is really a wonderful idea. thank you for sharing it.