1GL Bolt: Henley-on-Thames, St. Mary's Church   

Bolt in South side of Henley-upon-Thames parish church tower ; 1.83 ft. above surface [1GL, Basingstoke to Coventry, Mark No. 59]; PA BOLT ST MARY'S CH W FACE 5.5M NW ANG (height 36.1251m, 0.7m above ground).

Location
Grid reference: SU 7624 8266.
Landranger 175: Reading & Windsor, Henley-on-Thames & Bracknell.
Structure: Church / Chapel.
Waypoint: BT0194.

Neighbouring Bench Marks

BM	Henley-on-Thames, Henley Bridge 133.42m to the east.
BM	Henley-on-Thames, 29 Thames Side 148.66m to the north.
BM	Henley-on-Thames, Market Cross 181.11m to the west.
BM	Henley-on-Thames, 21 New Street 187.88m to the northwest.
BM	Henley-on-Thames, 1 Reading Road 202.48m to the southwest.

The nearest fundamental bench mark is Wallingford, 14.82km to the west.

First Primary Levelling, England & Wales (1840-60)
This bench mark was used during the First primary levelling, England & Wales, and was levelled with a height of 119.1420 feet [36.3145 metres] above mean sea level (Liverpool datum). It was included on the Basingstoke to Coventry levelling line. The surveyor's description was No. 59. Bolt in South side of Henley-upon-Thames parish church tower ; 1.83 ft. above surface (p235).

Logged Visits
Logged on 20th March 2009 by RogerTempleman. Condition: Good.
Cut mark with bolt at middle of datum cut on W face of St Mary the Virgin Church. It is about 1.5m from the SW angle of the tower (which has no south face).

Logged on 26th December 2006 by dal. Grid reference: SU 7624 8266. Condition: Good.
Bolt at centre of cut bench mark. Note it is on the west face.