Climbed this hill from the east after parking my car in Nicker and slipping through a quite obvious gap in the hedge. I'll post my GPS track soon. Followed the fence straight up the hill and went through a space in the fence to enter another field with the trig at it's top. Looking at the OSI map for this hill the spot height for the trig pillar seems to be incorrectly posted as 225 instead of 235 meters (it is posted here as 235). As time was on my side I first visited the ringfort to the north and then spot height 231 to the south east of trig pier which is a quite serene enclosure in the middle of the forestry. According to my (non-calibrated) GPS the height at the base of the trig plinth was 239 meters and at ground level in the centre of the forestry enclosure to the south east was 236 (a 3 meter difference in favour of the trig) which would tally with our interpretation of the OS map. I spent an hour donkeying around but it really is a quick 20 minute up and down from the road. Also this is farmland and there were cattle on it when I climbed, January 2015. Linkback: https://mountainviews.ie/summit/1240/comment/17798/

conormcbandon, well spotted.
This does appear to be an error on the 1:50000 map series.
The height we use on this hill comes from the older 6" maps from the 19th century which gives a trig height of 779 feet. Convert this to meters and you get 237.4392 and then allow for the change of datum from Poolbeg to Malin (difference of 2.7 meters) and you come up with a value of 234.7392 meters.
We round this off to 235 meters.

There are some inconsistancies in the 1:50,000 map series which we know the OSi are endeavouring to address in the more modern reprints. Linkback: https://mountainviews.ie/summit/1240/comment/17802/