On the eastern side of the main A848, near Ardnacross, next to a wood.
You can park in a passing place and then over the usual metal field gate.
I followed the tree line down to where the Cairn is but I couldn’t see a thing due to the head high ferns. A non-summer visit required!
‘The cairn is situated 500 SE of Ardnacross. It stands to a height of 1.3m above the surrounding field and measures about 8m in diameter. It is so overgrown that it is difficult to distinguish the edge of the cairn from the natural knoll on which it lies’.