The northern row gave me slightly less difficulty that the southern row, but many of the stones are extremely low indeed. The blocking stone stands a foot or so high and was the most recognisable to me, the grass being fairly rough and high during my visit.
Excavation of stone rows on Dartmoor has shown that they were normally built in woodland clearings that had previously been used for agriculture.
Although the trees surrounding Fernworthy are part of a modern plantation and not native species, it may well be that this row is more representative of how they may have looked originally.
There is a gap of about 100m (through the trees) between the stone circle and the stone row to the North. The row consists of 32 standing stones and 20 recumbent stones or stones barely poking through the earth, plus the blocking stone at the North end, and a few seemingly random stones at the mound just beyond the blocking stone.
As with all the sites in the area wooden marker posts exist here, one close to the southern tip of to row (labelled 8D), and one at the other end of the row (labelled 9D).