I am with you Doug, it would be a huge hole to bury that many planes, even in semidisassembled form eg no wings, tail and possibly no engines either.Especially crated and sealed properly
Might well have been freshly delivered and not yet uncrated, but digging their grave alone would have been a mighty task. Scepticism prevails...but as I said, we would all love to be proved wrong.
I vividly remember my late father telling me how in 1946-47 crated and unused aero engines could be bought as war surplus, whereupon the pesky engines would be instantly scrapped because what the buyers really coveted was the timber from the crates...
One of the Clive Cussler books 'found' a few Mescershmitt fighters in a disused rail tunnel as war booty. I have read elsewhere that was based on truth. But 2 or3 not dozens.