The Arch inventory tells us this wedge tomb is also know as "Niall's Grave".
It says that the other stone to the south is a standing stone however I thought it may have been another part of the capstone.
It is 4.4m long by 1.95m wide. You can clearly see the double lined walling.
I picked this at random from the inventory while in the area, strangely enough while checking directions to the next site (in my jeep) a pack of hunting dogs hopped over a ditch and ran by the tomb and off through the fields. No sign of any huntsmen or other dogs.