The site of a Bronze Age barrow which was partially removed in the 19th century and then levelled by Mr J. Moore in 1886. It measured about 9 metres in diameter and stood up to 1.8 metres high. The mound was composed of loose sand and gravel. 


It appears that there were originally at least two mounds within 30 metres of each other, separated by a road. The second barrow (PRN 0467.20) was close to the edge of the road and removed when the road was lowered in the past. 


The roadway is now 12.0 metres from bank to bank with grass covered fields on either side. The lane in which Cronk Aust was situated has been straightened out and resurfaced. No trace of either barrow now exists on the ground.  


About the centre of the first mound, at a depth of 1.6 metres, an urn was found. A second urn was also found 1.8 metres from the first. Both were filled with calcined bones.  Both  were subsequently destroyed.  They measured between 30cm and 60cm in height and were wide at the mouth, gradually narrowing to the bottom.  The first was well baked and it walls up to 9mm thick. Within the rim was an angular waved band sharply cut and slightly raised. Outside were two rows of elliptic but rather pointed figures covered with finely crossed lines. At the bottom was a roughly drawn five pointed star. The outside of the urn was thus entirely ornamented. It was filled with calcined bones and was placed mouth upwards but was broken and later pieced together. The second, larger, urn was only slightly ornamented with small dots or holes in lines. It was full of calcined bones and inverted. There were deposits of calcined bones and ashes within the Tumulus.