Identify lines of barrows in the study area.
Gather previous published information, if such existed, study the area using LIDAR, old maps, and other sources, and, where possible visiting sites . The researcher entered the University at a time when the Covid laws made fieldwork to be impossible, therefore the initial plan of using equipment to survey on site was not then feasible. The  approach altered to use available data on the central points of barrows, which could be used to measure the directions (azimuths)  of lines of barrows and to test the hypotheses about the prevalence of different directions of lines using calculation rather than surveying. Appropriate software was used to calculate the azimuths of lines, and to reconstruct the bare landscapes visible from observation points 25 metres from the edges of the outer barrows in each line ('Horizon' programme, Smith , A.  2020  Horizon v0.13c.). The final data were tested for the prevalence of azimuths of lines, where they pointed towards, to see if there were any significant patterns in this (using Dr Fabio Silva's 'skyscapeR' progarmme)