A number of field-boundaries originally visible on the ground were destroyed in the building of Druidale Reservoir in 1980 and the opportunity was taken to examine these before they were lost. On the east side of the river, a two-phase bank running up and down the slope was largely composed of earth with only a few stones. Although not giving a specific date to these boundaries, Morris seems to imply that they were elements of a farm economy, dating to the period from the 17th to 19th centuries.