Asama Jomon Museum is a municipal museum in Miyota Town, Nagano Prefecture, dedicated to two fascinating themes: the ancient Jomon period and the natural history of Mount Asama, one of Japan’s active volcanoes. Opened in 2003, the museum is located within the cultural complex École Miyota, together with a hall and library, and serves as an important center for local culture.
The Jomon period lasted for more than 10,000 years, from approximately 15,000 years ago to around 2,500 years ago. The museum introduces the distinctive culture that flourished on the southern foothills of Mount Asama, while also explaining the volcanic activity and natural environment that have shaped the region.
The first floor focuses on the Jomon culture that developed around the southern foothills of Mount Asama. The Jomon period began approximately 16,000 years ago and continued for more than 10,000 years, making it one of the longest prehistoric periods in Japanese history.
Nagano’s mountainous environment provided abundant natural resources, including plants, animals, and obsidian, a volcanic glass that was highly valued for making stone tools. During the Middle Jomon period, the region became one of the areas of Japan with the highest concentration of archaeological sites.
One of the highlights of the museum is its collection of Jomon pottery. Made by shaping clay and firing it, these vessels are often described as “art created from earth and fire.” Jomon pottery represents one of the world’s oldest traditions of ceramic production.
Among the most important exhibits is the Yakemachi Pottery excavated from the Kawaharada Archaeological Site and designated as a Nationally Designated Important Cultural Property. Its elaborate decoration and striking forms reveal the extraordinary creativity and aesthetic sense of prehistoric Japanese communities.
The museum also displays stone tools such as stone scrapers, drills, and arrowheads, as well as bone and antler implements. A reconstructed model of a pit dwelling helps visitors understand how Jomon people lived in their communities.
Displays also introduce the foods that supported everyday life, including deer and wild boar obtained through hunting, as well as acorns and horse chestnuts gathered from the surrounding forests. These exhibits offer an insight into a lifestyle closely connected with the natural environment.
The Jomon people also created objects associated with spiritual beliefs and personal adornment. Dogū clay figurines and stone rods are displayed alongside jade pendants and clay earrings.
These objects demonstrate that Jomon society was not concerned solely with survival. Spiritual practices, personal decoration, craftsmanship, and a sense of beauty were also important parts of everyday life.
A particularly popular exhibit is a decorated clay vessel with a human face, affectionately known as “Akubi-chan,” or “Little Yawn.” It is designated as a Nagano Prefecture Treasure and is one of the museum’s distinctive archaeological objects.
The second floor shifts from prehistoric culture to the powerful natural environment of the region. Standing at 2,568 meters, Mount Asama is one of Japan’s best-known active volcanoes, and its eruptions have repeatedly shaped the surrounding landscape.
The museum introduces major eruptions including the 1108 Tennin eruption and the 1783 Tenmei eruption. Through photographs, explanatory panels, and video displays, visitors can learn about volcanic structures, eruption history, and the geological forces that continue to influence the area.
The museum also explores the rich ecosystems created by Mount Asama’s volcanic environment. Exhibits introduce the high-altitude butterflies and rare alpine plants found around the mountain, helping visitors understand the diversity of life supported by the volcanic landscape.
By combining geology, ecology, and local history, the exhibition provides a broader understanding of how communities around Mount Asama have lived alongside an active volcano for generations.
One of the museum’s greatest attractions is its range of hands-on Jomon workshops. Visitors can take part in activities such as making pottery, clay figurines, magatama comma-shaped stone beads, traditional angin weaving, and Jomon-style beads. There are also free activities, including archery and traditional fire-starting experiences.
The magatama-making experience is particularly popular. Participants shape and polish a piece of soft soapstone to create their own original pendant.
Rather than simply looking at ancient artifacts behind glass, visitors can experience the process of making an object with their own hands. This makes Jomon culture more tangible and enjoyable, especially for families traveling with children, while adults can also appreciate the craftsmanship involved.
The museum has a shop offering original Jomon-themed goods and souvenirs. It also carries books related to Toru Takemitsu, the internationally renowned composer associated with Miyota Town.
This connection between prehistoric archaeology, local history, art, and modern culture reflects the broader cultural role of École Miyota and gives visitors an opportunity to discover more than just the ancient history of the area.
The museum is conveniently accessible by public transportation. From Karuisawa Station on the Hokuriku Shinkansen, transfer to the Shinano Railway and travel to Miyota Station, from where the museum is approximately a 7-minute walk.
By car, the museum is approximately 15 minutes from Sakudaira Station and around 10 minutes from the Saku Interchange on the Joshin-etsu Expressway.
Asama Jomon Museum offers a unique way to understand the southern foothills of Mount Asama through both human history and natural science. Its Jomon exhibits reveal the creativity, beliefs, technology, and everyday life of people who lived here thousands of years ago, while its Mount Asama displays explain the volcanic forces that continue to shape the region.
The combination of important archaeological artifacts, interactive workshops, volcanic history, and local culture makes the museum an engaging destination for visitors of all ages.
For travelers exploring Miyota, Karuizawa, and the Mount Asama area, a visit to Asama Jomon Museum offers a fascinating journey from the world of prehistoric Japan to the living geological landscape of today.