Multiple white (probably quartz) rocks dot the landscape near the stone wall and there are small piles west of the cache. Quartz rocks were sometimes used to mark corner boundaries years ago but were also used as "death related piles". The death related piles were sometimes created to memorialize a past event or important person.
Kindly leave the rocks as they are.
Cache is nowhere near the ancient rock wall.
Although hunting is not allowed here I recommend you WEAR ORANGE because hunters have been seen at Steere Hill.