Just north of the A40 – to the west of the B4298.
There is a convenient lay-by immediately to the east of the Hillfort although there does not appear to be any access to the field from here. There is no public right of way to the Hillfort.
I therefore chose to view from afar.
From the lay-by you could easily see the contours of the Hillfort on the grass covered hill.
‘Castell-Y-Gaer is a sub-rectangular enclosure, measuring 108m by 74m, having a NE facing entrance, overlies an oval hilltop enclosure, 240m by 130m, resting on its circuit on the NW & W, both circuits being defined by counter scarps’.