M11

[mitzimad]

any of you boys use the m11 between london and the m25 and seen the excavations in field adjacent to the northbound cariage way .we pass it fairly regular at first we thought it was a lake being dug then it looked like a mock up of an old iron age fort its circular trenches now they seem to have back filled and added chalk or lime stone on the tops of the mounds been going on a couple of years i would think anyone know what it is