The first dolmen you come to is not far after you pass under crackling powerlines.
This is a small dolmen, following the usual pattern from dolmens round these parts. It has lost its capstone, but the shape of the little box which remains is still worth a view and it has plenty of original rubble. A nice even pair of portal stones still stand to mark the entrance. It's right by the side of the track so you won't miss it.