According to Zabiela's survey in 1995, the fifth hill fort, Ižiniškiai (), is now severely damaged by erosion and human activities but was a strong hill fort with a large settlement. Zabiela surveyed additional six hill forts in 1996, including Ivangėnai-Karšuva hill fort near Skaudvilė () but concluded that Ižiniškiai remained the most probable location of Pilėnai. Tomas Baranauskas disagreed with Nikžentaitis' analysis and searched for Pilėnai in the area of five hill forts that, according to Guillaume de Machaut, were captured by the Teutonic campaign to Medvėgalis in 1329. He concluded that Pilėnai stood in Pilės hill fort near Kaltinėnai in Tauragė District (). However, an excavation of area in 1990 produced no artifacts.