This well has been documented by Amanda Clarke on her website The Holy Wells of Cork and Kerry
https://holywellscorkandkerry.com/2019/07/06/trekking-through-glens/
LORE: Well mentioned in the Schools’ Folklore Collection version of the Battle of Ventry, NFCS0282: 534.
https://www.duchas.ie/en/cbes/4921580/4881620/5148795
An extensive list of sources for information on traditions surrounding this well and the surrounding valley can be found in Mac Eoin, Gearóid S. “Gleann Bolcáin Agus Gleann Na NGealt.” Béaloideas, vol. 30, 1962, pp. 105–20.
Special thanks to Áine Uí Dhubhshláine for the first two videos below, which were created as part of the ethographic fieldwork project Ar Thóir na dToibreacha Beannaithe i gCorca Dhuibhne.