Megalithic tombs, built from large standing stones and typically dating to the Neolithic period, were constructed as collective burial monuments, often serving communities over generations rather than as graves for single individuals. What lingers about the Fálach example is its place within a broader archaeological landscape that Mayo, more than almost any other Irish county, has preserved in unusual concentration.

The principal survey record for this tomb comes from the work of Ruaidhrí de Valera and Seán Ó Nualláin, whose systematic county-by-county catalogue, published in 1964 by the Stationery Office in Dublin, remains a foundational reference for anyone studying Irish prehistoric monuments. De Valera and Ó Nualláin spent years classifying tomb types across Ireland, distinguishing court tombs, portal tombs, passage tombs, and wedge tombs according to their structural characteristics. Their second volume, dedicated to Co. Mayo, documented the remarkable density of such monuments across the county's boglands and hillsides, many of which had survived largely because the land around them was never intensively farmed or developed. The Fálach tomb forms part of that wider picture, a remnant of Neolithic activity in a region where the evidence of early settlement has been preserved, sometimes accidentally, by blanket bog.