[EN] This article presents new evidence of portable art documented in the levels attributed to the Lower Magdalenian period in the El Cierro cave (Fresno, Ribadesella, Asturias). It comes from the excavations carried out by A. Gómez Fuentes and F. Jordá Cerdá between 1977 and 1979 in the main chamber of the cave. These excavations yielded a limestone, probably detached from the walls of the cave itself, decorated with parallel incisions of unknown function. Research carried out between 2016 and 2019 has documented occupations dating back to the early Holocene (Mesolithic), in the transition from the late Pleistocene to the Holocene (Azilian), but mainly to the Upper Pleistocene (several levels dated to the Lower Magdalenian, Upper Solutrean, Late Gravettian, Aurignacian and one dated to the Mousterian). In this context, the new evidence recovered is analysed and compared with other decorated objects from the cave, both on organic supports (in particular, a shoulder blade engraved with a deer with multiple striated lines and fragments of throwing weapons engraved with different motifs) and on inorganic supports, from interventions carried out in the last century. This evidence is compared with similar evidence from other sites of the same chronology documented in the Cantabrian region.