Janek has contributed the coordinates (Ac. 5) for the three best preserved round barrows:
Barrow 1: N 51°40.42597', E 6°13.14075'
Barrow 2: N 51°40.41878', E 6°13.11887'
Barrow 3: N 51°40.41000', E 6°13.15620'
Something is not right. This message is just to keep things from messing up down the road