Glenarigolach is by far the most extensive settlement, comprising of a complex field system and several buildings. The heart of the settlement 3f is surrounded by several satellite enclosures (3a, 3b, 3c, 3d, 3e, 3g, 3h & 3i).

The remains of over 20 buildings and other domestic structures make up Glenarigolach.

A corn-drying kiln and rig & furrow cultivation indicate a thriving community at some point.