The wells comprise a series of well-heads developed individually from as early as 13th century to 1911 when the third well was dug. They were in use as the principal source of fresh water until the mains supply was introduced in 1937. The wells changed and developed over that period with Dr Salmon undertaking a major restoration in the 1880s and since that time they have been known, at least locally, as Salmon’s Wells. The site is permanently on display, with an explanatory panel and is of unique historic interest - no similar site has yet been found. It is part of a programme to restore the character of the Parish of Penllyn where elements of development from the 12th century to the present can still be visibly traced.Complete History of the Salmon Wells