Cille Bharra, also known as Kilbarr Church or St Barr's Church, is located on the eastern slopes of Ben Eoligarry. The site contains the remains of a medieval church dedicated to St Barr, with two chapels and a cemetery. The site is somewhat similar to the chapels at Howmore on South Uist. The church likely dates to the 1100s and was built on the site of an earlier 7th-century chapel.

At the east end of the North Chapel is a replica of the Kilbar Stone, a unique Christian-Nordic Runic Stone dating back to the 900s. The stone has a decorated cross on the front and a runic inscription on the reverse: "This cross has been raised in memory of Thorgeth, daughter of Steinar". The original stone is preserved by the National Museum of Scotland in Edinburgh.