Not strictly megalithic either.. but Thomas wrote of Avebury thus,
"the northern downs are totally different, here the land is scooped out into long swells with shallow sliding troughs and folds between them. The queer thing is that Avebury is still the capital of of North Wiltshire as Stonehenge is of the south. The villages mostly hide; visible modern works make ugly faces and only this pair, the rest of man's thoughts on the surface of the chalk, rest seaworthily upon the surge of verdant miles"

Massingham dedicated one of his books to 'The Avebury Party', so megameet parties are not new. Both books written before the 2nd ww...