This area extends for 10km from Sidaire [H244 531] to Trillick [H333 560] and is characterised by discontinuous, generally straight sand and gravel ridges aligned northeast-southwest. Individual ridges are 100-500m long, 5-10m high and 10-40m wide and are separated by breaks 50-100m across. Ridge long axes are generally flat to slightly undulatory. The ridges dip and swell in height and morphology and decline in overall elevation by about 40m from east to west. Only one ridge is usually present at any one location and ridges do not generally bifurcate. Ridges are often contained within a broad (100-150m wide, 10-30m deep) meltwater channel which is cut between diamict-dominated bedforms (200-300m wide, 600-1,200m long) aligned northwest-southeast (interpreted as Rogen moraines), and into bedrock.
