Gyrn Ddu grid reference
Gyrn Ddu is a 522 m (1,713 ft) summit in Anglesey and the Lleyn Peninsula, Gwynedd, Wales, listed as a Marilyn. Its summit grid reference is SH 40115 46785. The nearest postcode is LL54 5PS, 1.3 km away in the LL54 district.
Grid reference
SH 401 467
- 6-figure
- SH 401 467
- 8-figure
- SH 4011 4678
- 10-figure
- SH 40115 46785
- Lat/long
- 52.994464, -4.383681
- Lat/long (DMS)
- 52° 59′ 40.1″ N 004° 23′ 01.3″ W
- Eastings, northings
- 240115, 346785
- Height
- 522 m / 1,713 ft
- Lists
- Marilyns
Map of Gyrn Ddu
Map loads here
Summit position and height from the Database of British and Irish Hills. Mountain weather changes fast: carry a map and compass, and in an emergency call 999, ask for the police and then mountain rescue, and read out your grid reference.
Nearby summits
- Yr Eifl561 m · 4.2 km south-west
- Mynydd Graig Goch610 m · 9.8 km east
- Garnedd-goch700 m · 11.3 km east
- Garn Boduan280 m · 11.6 km south-west
- Craig Cwm Silyn734 m · 12.9 km east
- Mynydd Tal-y-mignedd654 m · 14.2 km east
- Trum y Ddysgl710 m · 15.2 km east
- Moel Lefn639 m · 15.3 km east
Nearest postcode
LL54 5PS is the closest postcode to the summit, 1.3 km away. See the LL54 postcode district for the surrounding area.