Me, too! That’s exactly what ii thought this was about.
In the North East of England, there is a hill in the village of Penshaw that has an interesting folk tale: The Lambton Worm (Im not sure how to link but google will bring up some hits im sure)
In short: When Lord Lambton was a boy he was fishing in a local stream, in time he caught a worm like creature. Disgusted he threw it back into the tream and didnt think anything more of it. Years later he is a knight who whilst away fighting a war (crusade maybe) He hears that his lands are being terrorised by a huge snake/monster that is eats sheep and people. Once the worm has had its fill, it coils itself round Penshaw hill and sleeps. This explains the sort of terraced appearance of the hill…
Lord lambton hurrys home, by this time other knights have died trying to slay the Worm. Being a smart chap, Lambton has his armour studded with sharp spikes, so that when the worm coils around him it becomes impaled and he is able to chop it into dozens of pieces. Lest the pieces rejoin they are sent to all corners of the realm and burried.
There is a charming little song that children will enjoy especially if you sing it in a North Eastern accent…
Also interesting: Penshaw hill has a romanesque folly on the top in memory of an one of the past Lord Lampton whom was much loved by the locals: not for his worm slaying I might add. Its quite a dramatic structure… Google Penshaw Monument.