BGS mineralogy and petrology collection record
| Sample number | MR21336 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Gravel. 'Original entry: Gravel, Glacial' |
| Stratigraphy | Not entered |
| Comments | Gravel, Glacial,Aggregate,Collected byRoad Research Lab. |
| Locality details | Quarry,Llwyn Isaf Pit, Upper Clynnog, |
| 50k map sheet | Nefyn (118) |
| Map reference | SH 41 49 |
| Year collected | 1957 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |