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Cut Mark: Heathylea Farm 
Old B.M. on N.E. face of building at Heathylea Farm [2GL] - approximate location (adjacent to FB 2939).
Location
Grid reference: SK 3296 5953.
Landranger 119: Buxton & Matlock, Bakewell & Dove Dale.
Structure: Farm building.
Waypoint: BM2640.
Neighbouring Bench Marks
The nearest fundamental bench mark is Matlock,
2.23km to the west.
Second Geodetic Levelling, England & Wales (1912-21)
This bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 635.7540 feet [193.7778 metres] above mean sea level (Newlyn datum). It was included as a side level on the Hibaldstow to Matlock levelling line. The surveyor's description was Old B.M. on N.E. face of building at Heathylea Farm.
Location
Grid reference: SK 3296 5953.
Landranger 119: Buxton & Matlock, Bakewell & Dove Dale.
Structure: Farm building.
Waypoint: BM2640.
Neighbouring Bench Marks
| BM | Riber, Carr Lane 1.90km to the west. |
| BM | Riber, opposite Castle entrance 2.21km to the west. |
| BM | Riber Road/Hearthstone Lane 2.57km to the west. |
| BM | Warney Lea 5.90km to the northwest. |
| BM | Shirland, Methodist Church 6.12km to the east. |
Second Geodetic Levelling, England & Wales (1912-21)
This bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 635.7540 feet [193.7778 metres] above mean sea level (Newlyn datum). It was included as a side level on the Hibaldstow to Matlock levelling line. The surveyor's description was Old B.M. on N.E. face of building at Heathylea Farm.
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