Swallowhead Springs has been proposed as a site for worship of the Celtic Goddess Brid or Bridget (Bride in Scotland and Breeshey on the Isle of Man). She presided over fire, art, beauty and is said to be the mother of the Gods. She is often associated with the return of the flow of water in the month of march and therefore the return of life in spring.
(Reference “The Avebury Cycle” by Dames)