They sit not in open pasture or on a commanding ridge but in a small peat-cutting, a rectangular patch of worked bog roughly 8.5 metres by 5 metres, scooped to an average depth of about 0.8 metres. The cutting lies towards the northern edge of a large area of blanket bog, south of Knocknadobar mountain, and the stones have been left standing amid what is essentially an old turf-harvesting scar. Whatever their original landscape context was, centuries of peat growth and removal have transformed it entirely.

The two stones are aligned on a northeast-southwest axis, standing 3.3 metres apart. The southwest stone reaches 1.8 metres in height and leans slightly to the southeast; its companion, marginally taller at 1.85 metres, tilts very strongly to the south and is considerably thicker, measuring at least 0.4 metres deep. Paired standing stones, sometimes called stone pairs, are a recognised monument type in prehistoric Ireland, and their consistent axial alignments have long invited speculation about astronomical or ritual purpose, though firm conclusions remain elusive. What makes Garrydine additionally interesting is a detail drawn from local memory: in the early decades of the twentieth century, peat-cutters working beside the monument uncovered a number of features described as stone graves. No physical trace of these survives above ground today, consumed either by continued cutting or by the bog itself, but their reported presence beside the stones hints at a burial or ceremonial function that extended beyond the standing stones alone.