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Cut Mark: Riber Road/Hearthstone Lane 
Old B.M. on gatepost at N.W. end of Hearthstone Lane, Riber Road [2GL]; STO GTP NW SIDE RD 7.3M SW WALL ANG SE FACE (247.8939m ODN, 0.4m AGL).
Location
Grid reference: SK 3053 5870.
Landranger 119: Buxton & Matlock, Bakewell & Dove Dale.
Structure: Gatepost.
Waypoint: BM2582.
Neighbouring Bench Marks
The nearest fundamental bench mark is Matlock,
346.70m to the northeast.
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 813.3100 feet [247.8969 metres] above mean sea level (Newlyn datum). It was included as a side level on the Matlock to Macclesfield levelling line. The surveyor's description was Old B.M. on gatepost at N.W. end of Hearthstone Lane, Riber Road.
Location
Grid reference: SK 3053 5870.
Landranger 119: Buxton & Matlock, Bakewell & Dove Dale.
Structure: Gatepost.
Waypoint: BM2582.
Neighbouring Bench Marks
| BM | Riber, opposite Castle entrance 374.43m to the northeast. |
| BM | Riber, Carr Lane 676.83m to the east. |
| BM | Heathylea Farm 2.57km to the east. |
| BM | Warney Lea 4.60km to the northwest. |
| BM | Dale Road/Church Lane 6.15km to the northwest. |
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 813.3100 feet [247.8969 metres] above mean sea level (Newlyn datum). It was included as a side level on the Matlock to Macclesfield levelling line. The surveyor's description was Old B.M. on gatepost at N.W. end of Hearthstone Lane, Riber Road.
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