Rathfalla or (Rath Bhaile - rath of the town) is described as a ring-fort in The Archaeological Inventory of County Tipperary. Vol. 1 - North Tipperary'.
I recently visited it as part of research for an article I was writing and discovered that rather than an external ditch which is the norm for ring-forts in Ireland it actually has an internal ditch which is more indicative of ceremonial use or a henge.
The diameter of the monument is 90m and the entrance is in the south-west.