Malin Head has been restored since these aerial photographs were done. You can read a report on the restoration here – the restoration was done in 2015. It looks beautiful, far better than it did when I saw it as a child.
Added August 2018 from the Conor Corbett collection of photos:
Two signs were built on Slieve League, of which all that remains is this part next to a carpark.
Sign at Mucros in Donegal added as closest to LOP 71
This sign is almost impossible to see on the aerial photographs but it has been renovated at some point.
Google – the resolution on this section of Belmullet is not clear enough to display the sign.