Another grounding, made by people, that is possible to find in the place, but completely unwittingly, are parts of the aircraft collapsed (mostly WW2), located at a depth under subsoil ploughing, as there may be located also a variety of archaeological remains (Iron Age, Bronze Age, including furnace slag), or fallen and forgotten parts of agricultural equipment or whatever industrial activity.
Isa pang saligan, na ginawa ng mga tao, Ito ay posibleng upang mahanap sa lugar, ngunit ganap nang hindi sinasadya, ay bahagi ng aircrafts gumuho (karamihan WW2), na matatagpuan sa isang malalimang sa ilalim ng ilalim ng lupa Pagbubungkal, pati na maaaring may din ng iba't-ibang mga Archaeological nananatiling (Iron Edad, Tanso Edad, Kabilang ang pugon mag-abo), o nahulog at nakalimutan bahagi ng agrikultura kagamitan o anumang pang-industriya na aktibidad.