The Gaudučiai Hillfort, also known as Čerčesnagių Hill or Pilimis, is located on the right bank of the Alantas River. This ancient monument is covered with deciduous trees, and its southern slope, constantly eroded by the river, crumbles into the Alantas. Although the defensive embankments typical of hillforts have not survived, the hill still retains its mysterious aura. It is believed that this hillfort dates back to the 1st millennium.
Legends tell that a powerful castle once stood atop the hill,
and at its foot, there was a city. Old stories suggest that treasures lie hidden within the hill, and in the evenings, the nymphs wash clothes in the Alantas River. It is said that there were doors on the slope leading into the hill, where a shepherd once found a great fortune, while another brave soul, consumed by greed, never returned.
Archaeologists consider this site not only a possible hillfort but also an altar hill – a sacred place of ancient Lithuanian rituals, recalling pagan traditions.