Rowlstone is in the SW of the county, 2km from Ewyas Harold Castle. The mound is located 100m NE of St. Peters church. The name Rowlstone comes from 'Rolueston', which means 'Ralph's estate'. (Herefordshire Place Names - Copleston-Crow, BAR  British Series 214, 1989)

The mound is 36m diameter at base and rises 4m above the bottom of a ditch to a flat top. The ditch is dry on the North and the Northeast and surrounds the mound with a width of 6m and depth of 2m. The south side of the ditch opens out onto low-lying ground.

There are no stone remains or evidence of a bailey embankment. Most likely the site of an early border castle.