LT2020 m. LII archeologai, įgyvendinant LLDJ projektą, žvalgė Elektrėnų ir Kaišiadorių rajonus kertančią 23 km ilgio atkarpą tarp Dauginavos ir Zelvės kaimų. Mechanizuotai nukasant paviršinį dirvožemio sluoksnį Mijaugonių kaimo teritorijoje (Elektrėnų sav., Kietaviškių sen.), pastebėtas senovės gyvenvietės archeologinis sluoksnis. Apie 30 m ilgio ir 8 m pločio ruože gelsvo smėlio įžemio fone išryškėjo tamsaus degėsingo smėlio dėmė, kurios paviršiuje aptikta keliolika lipdytinės keramikos brūkšniuotu paviršiumi šukių, nuo karščio skilusių akmenų, degėsių. Detaliai ištirtas statybvietės darbų zonoje esantis archeologinis sluoksnis. [...] [p. 26].
ENIn the course of the GIPL project in 2020, an archaeological layer was discovered during the mechanized removal of topsoil within the boundaries of the Mijaugonys village (in the Elektrėnai municipality), indicating the presence of an ancient settlement. The settlement was located on a sandy plain, far from large water bodies. An area of 256 m2 was excavated. The uppermost ploughed layer was mechanically removed prior to comprehensive excavation, and the entire excavated archaeological deposit was passed through a 5 mm sieve. The archaeological deposit consisted of a 20 cm layer of fine, dark-grey sand with evidence of burning. A total of 343 archaeological finds were collected: 331 pottery sherds; 9 pieces of flint; and 2 pieces of glass. A distinguishing type of pottery decoration was identified – parallel raised bands, triangular in profile. A flattened round bead made of transparent blue glass discovered at the site was typologically dated to the Late Bronze Age. Structure 1 was dated to the same period: 8th–4th century BC. The cuts of three features of unknown function were identified, with no evidence of buildings. The site could have been used for a specific activity some distance away from the main settlement.