Rockfalls are known as detachment, fall, rolling, and bouncing of rock fragments and represent a hazardous geomorphic process widely spread in mountain ranges, coastal cliffs, volcanoes, riverbanks, etc., some of them occurring in geomorphosite areas visited by tourists. Related or not to climate change, rockfalls negatively impact tourists and local communities of the affected areas. Taking into consideration the importance of natural risk in tourism development, several research surveys were made by academics and practitioners to mitigate and manage rockfall hazards and associated risks. The risk derived from rockfalls became a subject in the contemporary research in geomorphology and tourism analysis, and these studies, besides the theoretical approach, have been focused on infrastructure and elements into and towards tourist destinations with historical buildings or natural attractions flanked by cliffs that generate rockfalls. Various research methods, techniques and instruments are employed for rockfall monitoring, e.g., terrestrial laser scanning, LiDAR, total station survey, rock joint sensors, and other remote sensing imagery or photogrammetry. Most of these studies were focused on the present stage of the critical areas, but for a better understanding of the geomorphic hazard history and a better prediction, the dendrogeomorphic method was used in the past decades. So far, little research has been done on the frequency and magnitude of the rockfalls. Dendrogeomorphic reconstruction of rockfall activity was used to investigate and model different geomorphosites in the Alps. In the Carpathians, despite the presence of various active rockfall sites, the dendrogeomorphic investigations were not applied to assess rockfall hazards. In this study, we tested the potential of growth rings of Norway spruce (Picea abies L. Karst.) trees to record past rockfall activity. The Detunata Goală active geomorphosite (Apuseni Mts., Romania) was chosen as a study site to test the dendrogeomorphic methods to reconstruct rockfall activity. Trees with visible disturbances related to the mechanical impact produced by rockfalls, e.g., apex loss, stem wounding and tilting, have been sampled. Additionally, undisturbed trees growing outside the area reached by fallen rocks have also been sampled, and their growth chronologies served to build a local reference chronology. Growth anomalies (scars and traumatic resin ducts, compression wood and growth suppression sequences) found within the annual rings of disturbed trees were used to reconstruct rockfall events' time and spatial extent. Despite some inherent limitations of dendrogeomorphic methods, tree rings proved to be a reliable source of information on rockfall activity, clearly revealing the existence of the rockfall hazard within the geomorphosite area. Regarding hazard management, this information on past rockfall activity may further be helpful for decision-maker policies oriented to reduce the rockfall hazard exposure of tourists in the active geomorphosite investigated. [ABSTRACT FROM AUTHOR]