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Cut Mark: Riber, opposite Castle entrance 
Old B.M. on gatepost, E. side of road, 2 chains N.E. from entrance to Riber Castle [2GL] - estimated location.
Location
Grid reference: SK 3084 5891.
Landranger 119: Buxton & Matlock, Bakewell & Dove Dale.
Structure: Gatepost.
Waypoint: BM2584.
Neighbouring Bench Marks
The nearest fundamental bench mark is Matlock,
28.28m to the southwest.
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 797.8950 feet [243.1984 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, E. side of road, 2 chains N.E. from entrance to Riber Castle.
Location
Grid reference: SK 3084 5891.
Landranger 119: Buxton & Matlock, Bakewell & Dove Dale.
Structure: Gatepost.
Waypoint: BM2584.
Neighbouring Bench Marks
| BM | Riber, Carr Lane 355.11m to the east. |
| BM | Riber Road/Hearthstone Lane 374.43m to the southwest. |
| BM | Heathylea Farm 2.21km to the east. |
| BM | Warney Lea 4.63km to the northwest. |
| BM | Dale Road/Church Lane 6.19km 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 797.8950 feet [243.1984 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, E. side of road, 2 chains N.E. from entrance to Riber Castle.
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