Bit of a mess this one. The bank follows the line of heather from the bottom right to centre left then back to the upper right via the tufts of grass near the top of picture.
Possible ring cairn with central cairn, Barnatt suggests a robbed cairn due to it’s closeness to the stone wall. Tricky to find, wouldn’t like to say whether it’s worth the fight through heather and peat bogs.......but hey it’s there.