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| Country: | United Kingdom (United Kingdom of Great Britain and Northern Ireland) | (Original Size = 1 cm²) |
| Continent: | Europe (Northern Europe) | |
| Region: | Wales, Gwynedd | |
| Subregion: | Gwynedd | |
| Code: | GB-GD-GD | |
| Place of discovery: | Dolgellau, Snowdonia National Park River Afon Wnion | |
Sand type: | River | |
Coordinates: | 52.7444, -3.8852 * | |
| Height (sea level): | 13m (± 10m) | |
| Collection date: | --- |
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* The exact information is the "place of discovery description". The coordinates are only for information and only show the possible place of discovery of the sand.