Looks like the heatwave has uncovered possible new neolithic sites South-west of Newgrange!!
Mythical Ireland on Facebook posted this
I’m shaking with excitement as I write this….
Myself and Ken Williams of Shadows and Stone imaged some very substantial and previously unrecorded features in the fields near Newgrange this evening.
They look like giant henges or enclosures…
If these turn out to be substantial discoveries, then I would be nothing short of utterly elated, chuffed and excited.
We’re already discussing them with an archaeologist and to say he’s very excited is a huge understatement!
Meanwhile excavations near Newgrange are taking place in recent days but have nothing to do with this new discovery!
Irish Times
This phenomenon is frequent with dramatic drought event, something similar is
happening in Wales and it is basically a great time to be sending drones and planes to survey the landscape for new features like this!
This one near Newgrange is particularly unsual as despite extensive radar / solar imagery done before, nothign of that shape was ever discovered, best was probably this feature:

OSI 1995 Ortho shows nothing at all (unsure if image is post heatwave of 1995):

DKIT PDF of the entire survey for Boyne Area:
HERE