It was dedicated to Cathan, an obscure saint once venerated across the western Scottish islands.
It is located at grid reference NR3629095026, in the settlement of Lower Kilchattan.
[1] The ruins, which date to the pre-Reformation period, perhaps to the 14th century, stand within a walled graveyard which is still used.
The structure was built on the site of an even earlier chapel, no trace of which survives.
A holy well, known as Tobar Chatten (English: Well of Cathan), is located nearby at grid reference NR364948.