The Tirnony Dolmen is located about 1 mile north of Maghera. Recently it’s capstone collapsed and archeologists were given the chance to dig a portal tomb for the first time in 50 years. The tomb is dated to between 4,000 – 6,000 years old and was used for interring the bones of selected members of the local stone age community. This could have included men and women, young and old. Finds from inside similar tombs include pottery and flint tools, possibly left as grave goods for use by the dead in the afterlife. Portal tombs or dolmens have 2 two large uprights upon which the capstone rests at its highest-end which forms the entrance to the tomb. These types of portal tombs are only found in Ireland, Wales, and Cornwall, so there has long been a debate over where they originated and which portal tombs are the oldest. Archaeologists are hoping to carbon date any items they find which have fallen among the packed stones, giving an accurate date for the building o the tomb. Other interesting monuments in this area is the Sweathouse at Tirkane and in the field, to the south, there is rumoured to be a souterrain. These underground man-made caves are normally associated with ringforts and were constructed as a refuge in times of danger sometime between the 5th and 12th Centuries. There is also a free-standing orthostat next to one of the portal stones, which may suggest a forecourt which may, in turn, suggest a progression from the court tombs.