This popped up in my FB feed and I found it fascinating. I've been to Newgrange and another of the unexplored burial tombs in the area and thought this story was so very interesting. I did not know the buried architectural features changed how the water is in the soil.
"He said the bit of moisture left in the soil "lodges in the archaeological features a little bit more than it does in the surrounding soil and the crop that is growing out of the soil is greener in the archaeological features and drier outside of them"."
https://www.rte.ie/news/leinster/2018/0711/977969-newgrange/
I am not a huge fan of drones but I'm certainly OK with using them for this!
Sorry for the heat wave and the possible crop damage, though.