Troon Fundamental Bench Mark   

Location
Grid reference: SW 6630 3708.
Landranger 203: Land's End & Isles of Scilly, St Ives & Lizard Point.
GPS network passive station: H1SW6637.
Waypoint: FM7228.

Neighbouring Flush Brackets

S6926	Troon, School 770.26m to the north.
1778	Troon, Treweege 1.47km to the east.
G3298	Beacon, Cornwall 2.20km to the north.
1777	Pencoys, Forest Methodist Church 2.21km to the east.
1802	Boswyn 2.38km to the southwest.

The nearest fundamental bench mark is Tolcarne, 21.65km to the west.

Second Geodetic Levelling, England & Wales (1912-21)
This fundamental bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 658.0380 feet [200.5700 metres] above mean sea level (Newlyn datum). It was included on the Grampound to Troon and Troon to Newlyn (Tolcarne) levelling lines.

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 658.0380 feet [200.5700 metres] above mean sea level (Newlyn datum). It was included on the Madron to Troon, Troon to Boscastle and Troon to Grampound levelling lines.