Hydrology.
swallow hole;
Place where water disappears underground in a limestone region. It generally implies water loss in a closed depression or blind valley.
see also http://www.copa.org/2001/summary/ics-quarry.html for a Swallow Hole
I heard a hydrologist on the radio saying that Swallowheads are springs with water unfit for people.
The Silbury Swallowhead is reputedly good for curing eye diseases.
The Spring next to Silbury is also named as Swallowhead on early maps.
PeteG
Reply | with quote | Posted by Pete G 12th November 2006ce 22:09 |
|