Brown Willy is unusual in that, unlike other hills on Bodmin Moor, there is little evidence of prehistoric settlement around it. It may have instead been set aside for use as a communal area for people from the surrounding settlements, who may have used the ridge as a ceremonial procession route. There are no house circles or platforms in the area of the summit. The remains of seventeen houses and platforms have been found on the lower part of the eastern slopes and another 23 low on the western slopes; they were crudely constructed and probably only used seasonally. Nearly two-thirds of them were constructed in positions with a clear line of sight to the summit of Brown Willy and the nearby hill of Rough Tor, suggesting that the hilltops were viewed as special places.