This is the remains of a four-poster, with 2 of the stones still standing, one half fallen over, and one lying on the ground.
The stones sit at the end of a much later building, and one of the stones has been incorporated into the farmstead.
This is definitely a site to visit in summer (or summer weather) rather than winter. The ridge on which the stones stand is littered with stones, and if you don’t know exactly what you’re looking for they can be difficult to spot. However, when the grass is dry it’s possible to see a very faint sheep track contrasting with the rest of the grass, and this will lead you direct to the stones (see directions below). There appears to be the remnants of a stone-marked track running past the stone setting – perhaps an original route through the glen, up away from the river and the wetter ground?