Weirdly, we were just planning our route to Minehead and added Stone Henge and Avebury as points (me and the kids have never been) and then this popped up!
Non-descript stones found at Avebury Henge were carried by humans from 280 miles away. Interestingly, these specific stones have only been found at one site. Why the people of this time would take pebbles on their journey is a mystery. Perhaps they simply wanted to bring a piece of home with them, but regardless of why, this discovery speaks to interconnectedness and the amount of travel taking place in ancient times. Summarized from source: https://www.youtube.com/watch?v=RxcY28W3F6M
The whole area seems to be some sort of ancient "thing" that I guess is pretty much lost to time now - definitely interesting!