Publications (1)
- Fairbairn, Raymond A.; NMRS (2005); British Mining 77 - Mines of Upper Teesdale, The; ISBN 0901450 59 6; pp.116,161.
 
        
    
Jan 1st, 2024 from NMRS by Buddle-Bot![]()
| Northern Pennines | |
| Langdon Beck | |
| 54.676007, -2.229324 | |
| NY 8531 3124 | |
| Private Land | |
| 394m | |
| #16,948 | 
Barney Gill Pits - 694m
Red Gill Sike Low Level - 1,021m
Red Gill Level - 1,147m
Red Gill Sike High Level - 1,225m
Harthope Low Level - 1,481m
High Hurth Edge Level (a) - 1,519m
Harthope Beck - 1,716m
Cronkley Scar Slate Quarry & Pencil Mill - 1,759m
Harthope High Level - 1,762m
High Hurth Edge Level (b) - 1,785m