The map records approximate observation points only. Weathered front porches, abandoned structures, dusty roads, music festivals.... Places where fractures in consensus reality are more likely to exist. These are the places where artifacts and the Nomads that carry them congregate.
Reality drift tends to accumulate slowly around mutually agreed upon release, decay, overlooked thresholds, and places where travelers once stopped to rest. Dance and things have a way of finding you.... There are no accidents