The beginning of the moving of stones to Mosėdis coincides with the arrival of the young doctor Vaclovas Into to head the new hospital in 1957. Thanks to him, Mosėdis and stone became inseparable concepts.

Once, while visiting patients, he saw a stone weighing about 50 kg in a nearby village, which he carried to the hospital yard on his bicycle. Since then, the doctor's great love for stones began. In the summer before work, he cycled around the neighborhood, marked the more interesting boulders, visited quarries, and asked the reclamation workers to leave the ones he marked. V. Intas brought some of them himself in a cart pulled by a hospital horse. In winters, Skuados melioration equipment helped. Sometimes the journey of stones weighing tens of tons to Mosėdis took almost a week.

Eventually, when the stones could no longer fit in the hospital yard, doctor V. Intas began to build them at the edges of the street. Even later, the stones became the decoration of the Mosedian homesteads themselves, although at first they called their doctor a freak.

After 1962 after the fire in the center of Mosėdis, it was decided not to rebuild the lower part of the slope, but to turn this place into a square, where famous men of Žemaitija and Lithuania are now honored with huge stones and planted oak trees, and significant dates of our state are remembered. Finally, there was not enough space for the doctor in the narrow space of the hospital area. He had the idea to create a stone park along the Bartuva river.

The museum-park project was prepared by landscape specialists Rūta and Alfonsas Kiškiai, and the dendrological part by Genovaitė Prakapaitė. Professor Algirdas Gaigalas, Doctor of Geology and Mineralogy, was appointed as the scientific leader of the project. In the right valley of the Bartuva bank, work began in 1972. Even before the establishment of the museum, in addition to the huge collection of boulders from the Ice Age, about 1,000 species and forms of plants were already growing in Mosėdi. Thus, one man's Žemaitian stubbornness and love for nature gave rise to the creation of the museum.

After long adjustments, correspondence and consultations in 1979 on February 26, it was decided to establish the Republican Museum of Unique Stones (LTSR State Nature Protection Committee) in Mosėdi. Now the museum is under the Ministry of Environment.

Currently, the museum exhibits more than 150 thousand. collection of stones and pebbles - common boulders of the Baltic region in Lithuania. The largest museum exhibit weighs 50 tons, the smallest - just a few grams. You will find a chamber exposition in the restored water mill. It contains geological maps, classification of rock fragments, petrified animals and plants, stones brought from various countries and donated to the museum. Foreign bodies removed from the human body and a collection of cross-sections of trees growing in Lithuania are also exhibited here.

The outdoor exposition of the museum contains more than 200 large boulders, which are exhibited under the open sky - on the terrace of the Bartuva valley, on an area of 8 hectares. The boulders are arranged sequentially according to their origin, in separate groups, slightly buried in the ground to create the image of a natural boulder. Millstones, stone stairs, paths, retaining walls, pavements, bridges, fences introduce visitors to how stone can be used. The most famous people of Žemaitija and Lithuania are honored with huge stones and planted oak trees, the beautifully composed stones remind of important events and significant dates.

In 1984, the stone museum park was planted. In 2000, the museum's dendrological collection was declared a state-protected natural object. It contains 15 particularly valuable plant species.