“…Most of the features identified consist of well-delimited single structures (e.g., tomb, hilltop fort), although some more enigmatic (e.g., enclosures) or complex or composite features (e.g., modern pastoral campsite with a number of features within it) are less easily defined. To minimize the risk of misidentification (issue ii), we rely on operators' knowledge acquired through fieldwork in neighbouring areas of the SW Fazzan [1,9,29], Wadi ash-Shati region [5,64,65], and Fadnoun range [66]. Direct experience of comparable archaeological evidence, coupled with information from published data, reduces the risk of misidentification and incorrect chronological attribution (issue iii), especially in view of the relatively high standardization of the majority of Saharan monuments and features.…”