Ancient Sites in Winter Hill Ancient Sites in Winter HillWinter Hill TumulusA prehistoric round cairn towards the summit of Winter Hill. White Brow CairnA prehistoric round cairn located on a local high point 280m west of Old Harpers Farm Noon HillHigh on the summit of the often foreboding Noon Hill is a Bronze Age round cairn topped by a more recent cairn of uncertain ageTwo LadsThe Two Lads cairns on Crooked Edge Hill above Horwich and Bolton.