The existence of a chapel on the Calf of Man, or the tradition of one, was known to Durham, who surveyed the island in 1595. It was thought that the keeill was located at the 'Bushel's House' site (PRN 0040.00), but more recent evidence locates it in the vicinity of 'Jane's House', a now-derelict farm cottage overlooking Cow Harbour. Lintel-graves were found in this area between 1888 and 1890. The area in the vicinity of OS Bench Mark 195.3 (SC16526612) was examined in 1965 by J.R. Bruce and A.M. Cubbon. Probing of a slightly raised platform revealed the presence of several large buried stones, roughly in line, possibly indicating the site of the keeill. 


The chapel was destroyed in 1773. In the course of its destruction a cross-slab bearing an early representation of the crucifixion was discovered. This had probably formed part of the altar and is dated to the 8th century. Angus-Butterworth describes the crucifix as a unique work of art and of great importance. It is made of local Manx slate and was probably carved on the Calf of Man. Kermode says that the 'fineness and delicacy of workmanship exceeds anything that is known of stone of that early period'. It was given to Manx Museum in 1955-6.