Like Mr G I thought this a rather nice cairn, well placed if somewhat hidden by a wee rocky hill but with magnificent views except due west. The A894 hides views of the broch.
However the broch does provide an opportunity to park away from the road to the west of the A894. I headed back east jumped the gate opposite, followed a fence south then headed east straight to the top of the rocky hill. Immediately below this hill sits the cairn.
Sitting at over 15m wide and almost 1.7m high it remains undisturbed (according to (Canmore) despite being much robbed, the nearby road has probably made it safer from harm and further modern day robbing. My old friend (from my younger days) the Quinag overseas what I and everything else does.
This is an unassuming, seemingly inviolate cairn set upon a craggy hill side a little to the north-west of the Kylesku bridge, the latter carrying the A894 across the meeting of Loch a' Chairn Bhain with Loch Glencoul to the north and, to my mind, a rather graceful, aesthetically pleasing structure in its own right. The scenery is archetypal west coast, the fine peaks of Quinag applying the pièce de résistance to the approx south.
According to Canmore: "A well-preserved cairn, 15.5m in diameter, maximum height 1.7m. It is considerably mutilated, but otherwise undisturbed; there is no evidence of a chamber." OS (W D J) 21/4/61 and (N K B) 22/80.
Incidentally don't forget to visit the nearby broch (just the other - southern - side of the road) and, if time and circumstances permit, take a boat trip along Loch Glencoul to gawp at Eas a' Chual Aluinn, Scotland's highest waterfall. No less.