These kinds of sites, simple surface remains or low stone foundations marking where people once sheltered or worked, are scattered across the islands and headlands of the west, yet each one represents a particular decision to be in a particular place, whether for seasonal grazing, fishing, or longer settlement.

Acaill Bheag sits in the shadow of its larger neighbour Achill Island, one of the most substantial islands off the Irish coast. The smaller island's name, meaning "little Achill" in Irish, suggests it was always understood in relation to that larger presence. Hut sites of this kind in the west of Ireland range in date from prehistoric periods through to relatively recent centuries, and were often connected to the practice of booleying, the seasonal movement of people and livestock to summer pastures on higher or more remote ground. Without more detailed recorded information for this specific site, the precise date and function of the structure remain open questions.