What is significance of the map on the Kildress page, please?

Hi. I'm having some difficulty navigating around the website!

Being unfamiliar with the locations and customs of how land is organized adds to my confusion.

On this page, what is the significance of the map on this page?

https://www.irelandxo.com/ireland/tyrone/kildress-tyrone

I've posted some questions but still confused where to post and reply.

Thank you, Peggy, Canada.