Sand sample No. 6444 from United States of America
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| Country: | United States of America (United States of America) |
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| Continent: | North America (North America) | |
| Region: | California | |
| Subregion: | San Francisco | |
| Code: | US-CA-SF | |
| Place of discovery: | Island Alcatraz (The Rock), former military prison North Pacific Ocean | |
Sand type: | Beach | |
Coordinates: | 37.8272, -122.422 * | |
| Height (sea level): | 0m (± 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.
