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Anglesey and the Lleyn Peninsula Area
Place count in area: 24,  
Highest place: Yr Eifl, 560.7m
Maximum height for area: 560.7 metres,     Maximum prominence for area: 429 metres,

Note: this list of places includes island features such as summits, but not islands as such.
Tre'r Ceiri Hill

Height: 485.3m OS 1:50k Mapsheet: 123 Grid Reference: SH37438 44722
Place visited by 4 members. Recently by: scapania, IainT, Fergalh, simon3
I have visited this place: NO (You need to be a logged-in member to change this.)

Longitude: -4.422506, Latitude: 52.975143 , Easting: 237438, Northing: 344722 Prominence: 66m,  Isolation: 0.9km ,   GPS IDs, 6 char: TrrCr, 10 char: Trer Ceiri
COMMENTS for Tre'r Ceiri 1 of 1  
Follow this place's comments Picture about mountain Tre'r Ceiri  in area Anglesey and the Lleyn Peninsula, Ireland
Picture: Cairn at summit
Short trek to summit
by Fergalh  2 Jan 2021
From Yr Eifil there is a short descent and ascent to which leads to the remains of an old hill fort. This summit marked with a large cairn Linkback:
Your Score: Very useful <<  >>Average
(End of comment section for Tre'r Ceiri .)

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Some mapping:
Open Street Map
(Various variations used.)
British summit data courtesy:
Database of British & Irish Hills
(Creative Commons Licence), a Hill-walking Website for the island of Ireland. 2300 Summiteers, 1460 Contributors, Newsletter since 2007