Caernarvon Fundamental Bench Mark   

Location
Grid reference: SH 4800 5457.
Landranger 115: Snowdon & Caernarfon.
Landranger 123: Lleyn Peninsula.
GPS network passive station: H1SH4854.
Waypoint: FM0520.

Neighbouring Flush Brackets

G2709	Dafarn Dudur 786.45m to the west.
G2750	Groeslon, Tafarn Pennionyn 1.54km to the northwest.
G2630	Penygroes 1.67km to the southwest.
G2751	Plas Dolydd 2.60km to the north.
S0317	Llanllyfni 2.83km to the south.

The nearest fundamental bench mark is Trawsfynydd, 29.03km to the southeast.

Third Geodetic Levelling, England & Wales (1950-68)
This fundamental bench mark was used during the Third geodetic levelling, England & Wales, and was levelled with a height of 490.1580 feet [149.4002 metres] above mean sea level (Newlyn datum). It was included on the Caernarvon to Conwy, Caernarvon to Holyhead and Trawsfynydd to Caernarvon levelling lines.

Logged Visits
Logged on 3rd July 2007 by Meirion. Condition: Good.
Easy to find, just beyond the Farmhouse with lots of angry dogs, which were all chained up! Thankfully! The farmer was very friendly and most helpful.