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1GL Bolt: Broadclyst, Church 
Broad Clist Church. Bolt in West side of tower, near doorway ; 1.96 ft. above surface [1GL, Bristol to Plymouth, Branch Levelling from Mark No. 186]; PA BOLT ST JOHN THE BAPTISTS CH TWR BROADCLYST W FACE 1.8M NW ANG (23.0978m ODN, 0.7m AGL).
Location
Grid reference: SX 9815 9727.
Landranger 192: Exeter & Sidmouth, Exmouth & Teignmouth.
Structure: Church.
Waypoint: BT0675.
Neighbouring Bench Marks
The nearest fundamental bench mark is Bridford,
20.09km to the southwest.
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 76.2320 feet [23.2355 metres] above mean sea level (Liverpool datum). It was included as a side level on the Bristol to Plymouth levelling line. The surveyor's description was Broad Clist Church. Bolt in West side of tower, near doorway ; 1.96 ft. above surface.
Location
Grid reference: SX 9815 9727.
Landranger 192: Exeter & Sidmouth, Exmouth & Teignmouth.
Structure: Church.
Waypoint: BT0675.
Neighbouring Bench Marks
| BOLT | Farringdon, Church 7.05km to the southeast. |
| BM | Farringdon, Church 7.05km to the southeast. |
| BOLT | Exeter, Cathedral 7.71km to the southwest. |
| BOLT | Exeter, St. Thomas's Church 8.84km to the southwest. |
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 76.2320 feet [23.2355 metres] above mean sea level (Liverpool datum). It was included as a side level on the Bristol to Plymouth levelling line. The surveyor's description was Broad Clist Church. Bolt in West side of tower, near doorway ; 1.96 ft. above surface.
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