| Name | Vasknarva 639 borehole |
| Number | 639 |
| Type | borehole (section) |
| Country | Estonia |
| Parish | Alajõe |
| Elevation | 31.00 |
| Coordinates | 59.007567, 27.688436 |
| Coord. agent | Eesti Geoloogiakeskus (EGK) |
| Strat. top | Narva Stage |
| Strat. base | Kallavere Formation |
| Remarks | Puuritud fosforiidile 09.1984; EGF 4155; südamik Keilas ja kastid 12-18 GI-s |
| Estonian Land Board ID | 1514 |
| Date added | 2004-09-01 |
| Date changed | 2019-03-06 |
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