The study of lithic artifacts found in the Alban Hills (near Rome) in contexts dating from historical times has enabled a series of reflections on the impact of the recovery and use of prehistoric flint objects in medieval, modern and contemporary times. This subject has rarely been addressed in the archeological literature, but it offers a different perspective for the methodological assessment of surface collections and isolated finds, especially in the case of old surface collections or finds that have not been analyzed scientifically. Flint does not occur naturally in the Alban Hills, hence people living there who wished to use flint scavenged prehistoric implements from prehistoric sites on the Pontine plain or at even greater distances, thereby impoverishing the archeological record. Conversely, most findspots of Paleolithic implements in the Alban Hills are probably related to modern reuse, not to human activities in the Pleistocene.