Gilsland Spa Sulphur Spring in the woodland of the Irthing Gorge at Gilsland near carlisle, Cumbria.
The outlet for the Spa’s famous sulphurous spring water was rebuilt in 1964. Today the flow is just a trickle but in the 1830s, writer William Ford said it flowed 'at the rate of two gallons and a half per minute'. He also wrote that the water was very transparent and 'sparkled briskly when poured from one tumbler to another, and although it did 'sit lightly on the stomach' it tasted acidulous and had a strong smell.