Figure 3. Plan of the Crick bell-barrow, reproduced after H. N. Savory. The lines running through the barrow are the excavation trenches. The 'key boulders' are shown solid and the loose stones of the 'crude walling' are shown in outline. The astronomical alignments to the cup-marked boulders are shown through the points of greatest cup-marked concentration. The elevations (h) and declinations (Greek letter δ) refer to an observer standing on the pre-barrow surface (main plan reproduced from the journal Archaeologia Cambrensis, XCV, 1940)