Originally Posted by
Beluga406
Wikipedia - List of Light Houses still has Blackrock listed with a tower height of 15 mm/ 49 ft . What do other data bases have the height?
... and wikipedia also lists the focal hight, which is imminent for navigational purpose ( distance of visibility ) as 282 ft.
So the top of the lighthouse should be some feet higher...
https://en.wikipedia.org/wiki/Blackrock_Island_(Mayo)
skadi