This mound is sometimes called the mound of Ažusamanė or Samanis, dating from the beginning of the I-II millennium AD. According to legend, a giant named Samanis took a handful of lands and poured it into one place. At the point where the land was taken, Lake Samanis emerged, and Samani mound emerged from the poured lands. Only after the restoration of independence the 2.1-hectare mound was called Degučiai mound. Until then, it was simply "Mound", to which the secret path through the adjacent "puddle" of Ažusamanis, and in 1830-1831, there was the headquarters of Emilia Pliaterytė. It is possible that the main fortress of the Duke of Nalšiai Šiukštis (died in 1272) was installed on the mound of Degučiai. At the top of Degučiai mound is an oval, oblong, with a size of 27x19 m. Mound of Degučiai has as many as three dikes. The slopes of Degučiai mound are steep, 15 m high.