Also known as Callanish V, this site is found across the road from Callanish IV. Take the track up past the sheep pens and the row is visible to the south east across the usual peat bog field. Wear your wellies!
I've not been to this site but I understand that it consists of 5 standing stones, 3 of them prominent.
In 1914, "five standing stones, apparently forming the western arc of a large circle", were recorded by the RCAHMS varying from approximately 75cm to 106 cm in height.
Another record, made in 1969 (possibly after a visit by the Ordnance Survey) cast doubt on whether the site was the remains of a stone circle:
...the fact that two of the stones are set very close to each other whilst the others are widely spaced, and the total lack of others on the circumference of a deduced circle of c.100.0m, casts doubt on this being the remains of a strong circle. It is possible that they form part of a field or enclosure wall, but if so any other trace of it is under the peat. The stones further down the slope appear to be out-cropping natural boulders.