The two-capstone dolmen
The Aughnacliffe Dolmen is a portal tomb of the Neolithic, built somewhere around 3000 BC, and it gives both the village and the townland their name. It is one of only four portal tombs in Co. Longford - the others at Cleenrath nearby, at Birrinagh near Moyne, and at Melkagh near Drumlish - and the most striking of them. Where a standard dolmen carries a single capstone tilted up on its portal stones, Aughnacliffe carries two, stacked, the larger roughly 3.2 metres long and 2.3 wide. It is reached by a laneway off the road about a hundred metres from the church, through a field gate. There is no car park and no ticket office. Bring boots if it has been wet.