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| Country: | Switzerland (Swiss Confederation) | |
| Continent: | Europe (Western Europe) | |
| Region: | Valais | |
| Subregion: | Martigny | |
| Code: | CH-VS-MA | |
| Place of discovery: | Martigny River Le Rhône | |
Sand type: | River | |
Coordinates: | 46.1202, 7.0694 * | |
| Height (sea level): | 455m (± 10m) | |
| Collection date: | 7.2005 |
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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.