Hi,

Thank you for your comment.

It is a long times since I was on the ground there, but I get the impression that this area is more of a ridge than a peak.

Tallaght Hill is mapped here:
https://www.openstreetmap.org/node/2506166762/ based on historic maps.

A peak is mapped here: https://www.openstreetmap.org/node/1890682237/
