Good photos of a very sombre place. Such crash sites are always upsetting.
I once saw a photo of a commemorative plaque in honour of the crew of a Wellington, which was very poignant for me. The aircraft had flown from a particular airfield where my Grandfather had ben based in WWII. It was very likely that he knew the crew of that plane.
As for the B-29 (Overexposed), they were the type of plane used to fly the atomic bombs.
On the one hand is a plane used to destroy life/nature while on the other, is a plane that itself was destroyed by nature (arguably by a failure of navigation rather than pure nature alone).
So beware all - remember how important navigation is.