I have seen the River Manifold do that.
Cressbrook Dale flows on the surface in flood. Top end of Chapel-Le-Dale as well.Thanks; I heard that can happen but I never had the opportunity to witness that one. Is Lathkilldale another example?
Just to clarify; the reason I posted this topic is because I'm interested in intermittent streams in limestone areas, where normal flows are underground in cave systems but floods cause rivers to flow on the surface (as opposed to "ordinary" dry stream beds that can flash flood alarmingly fast in convectional rainfall events).
Does anyone know of any other examples of the former, in the UK?
It's towards the end of the Sid Perou film Hard Decisions at Sleets Gill, about the 1992 rescue when the dry cavers were dived out.There is some footage somewhere of Sleets Gill becoming a resurgence and flowing down the intermittent dry valley below it. I believe in this state of flood the cave is full. There was a rescue with divers to retrieve dry cavers trapped beyond a flood sump that didnt completely fill the system
I think this would be the case for all three Welsh rivers: Nedd Fechan, Mellte, and Hepste.Thanks; I heard that can happen but I never had the opportunity to witness that one. Is Lathkilldale another example?
Just to clarify; the reason I posted this topic is because I'm interested in intermittent streams in limestone areas, where normal flows are underground in cave systems but floods cause rivers to flow on the surface (as opposed to "ordinary" dry stream beds that can flash flood alarmingly fast in convectional rainfall events).
Does anyone know of any other examples of the former, in the UK?