Has the 21st (unexploded) mine placed at the Messines Ridge during WWI been found yet?

No.





21 mines were laid in preparation for the apocalyptic start to the Messines battle on 7 June 1917. However a decision was taken to explode only 19 of the mines; the remaining two remained dormant until the end of the war and beyond.





It is said that the British lost the details of the whereabouts of these mines, much to the discomfort of the Belgian authorities.





One of the two mines went off unexpectedly on 17 June 1955 during a thunderstorm, near Le Pelerin. Electrification of the area had arrived in the 1940s and 50s, and a pylon was unknowingly erected above the site of the mine; lightning struck the pylon, detonating the mine below.





The only casualty was a dead cow, although surrounding damage was extensive. The resultant crater has since been filled in, although after heavy rainfall a slight depression in the ground indicates the location of the crater.





One mine remains undetected to this day; however there have been rumours that the whereabouts of this mine has recently been discovered, nearby the 1955 mine some 150 metres across the road.Has the 21st (unexploded) mine placed at the Messines Ridge during WWI been found yet?
there a still 1 or 2 mines where the location isn't really know because from the 24 only 20 where used. There was one at the ';petite douve farm '; was almost a year before the battle discovered ( Aug 1916 ) and this one was destroyed by a camouflet. But the condition of this mine isn't known ( already a charge in or not ? ) and the present day farmyard would be above this mine


Then there is the '; bird case '; mines who where kept in reserve because the frontline wasn't any more in the good position mostly regarded as one mine but there where more then one mine chamber and also nothing is known on the condition of the charge and then there was the one that already exploded


On the other hand one of the charges mostly used is ammonal as explosive who becomes ineffective in water and all those old dog outs and mines are flooded but also very unstable when dry so better leave it at peace then starting to move itHas the 21st (unexploded) mine placed at the Messines Ridge during WWI been found yet?
No.





http://www.diggerhistory.info/pages-batt鈥?/a>
YES, I HEARD IT WAS FOUND ALIVE AND DOING WELL IN PROSTHETICS.
France is still full of unexploded bombs, mines, shells, etc. WWI battlefields occasionally have an explosion, and some places do not allow tourists to wander off the paths.