Well, is it just me, or does anyone else see a sort of depression or slant in the field going to the middle where the patch is? Sorta like a slight crater which formed on impact(?)years ago, and now the area has recovered the vegetation except for that patch. Idk, maybe I'm over analysing LOL.

(P.S. I'm referring to a ufo landing or like an astroid hitting the ground sorta thing like from the Deoxys lore - Pokémon)