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Here lies the obsidian that became the stone tools that are Japan’s oldest National Treasure. This is also the only town in all of Hokkaido where a National Treasure and a Geopark come together.

Formed through the merger of the three towns of Engaru, Maruseppu, Ikutahara and the village of Shirataki, Engaru is a destination where flowers and forests, railways and hotsprings, and timeless history all come alive. On this wide northern expanse, where Ezo deer and red foxes run free, you can experience both the romance of the ancient past and the living breath of nature.

In this article, we’ll dive into Engaru’s unique charms, from information about obsidian and geoparks to an introduction of the local hot springs, sightseeing spots, and gourmet dining beloved by locals.

Seasonal landscapes, such as Taiyō no Oka with its fields of flowers, forest railways weaving through the trees, frozen waterfalls glistening in winter and star-filled night skies, leave unforgettable impressions on visitors.

Come to Engaru, and discover the “miraculous stories” that can only be found here, admist the warmth and insight of those who live here in harmony with the land.

The Shirataki area of Engaru Town in Hokkaido is best known for possessing Japan’s oldest National Treasure, the Obsidian Stone Tools Excavated from the Shirataki Archaeological Sites.
In Hokkaido, only two items are designated as National Treasures: the “Hollow Clay Figurine (Chūkū Dogū)” in Hakodate City and this Shirataki assemblage. Its rarity underscores the significant cultural value that Engaru Town proudly holds.

The excavated stone tools date from the Paleolithic era, long before the Jomon period, approximately 30,000 to 12,000 years ago. That people of the time crafted sharp blades and hunting tools by skillfully processing obsidian testifies to their advanced techniques and wisdom. These items are not merely tools but precious cultural heritage that still convey human ingenuity and the breath of antiquity to us today.

Obsidian is a natural glass formed when magma ejected from a volcano cools rapidly. Because obsidian breaks with fracture points as sharp as a knife, it was an ideal material for tools in ancient times.
You can see this obsidian in the video from 0:40.

Image of obsidian arrowhead
Photo: Obsidian arrowhead

The Shirataki sourced obsidian is especially high in quality, distinguished by its jet black luster and a translucent aesthetic. During the Paleolithic era, it was fashioned into knives and arrowheads. Archaeological evidence confirms that it was transported not just across Hokkaido but also to Honshu and Sakhalin, suggesting Shirataki’s role as a hub in ancient wide area trade networks. Even today, its beauty continues to captivate.
At Engaru’s Shirataki Geopark Exchange Center, obsidian is on permanently display, allowing visitors to examine it up close, and enjoy its mysterious, distinctive glow as light passes through it. Truly, obsidian is not just stone, but a jewel born from the earth.

In 2010, the “Shirataki Geopark” was certified by the Japan Geopark Network.
A geopark is akin to an “outdoor museum”, a place where you can enjoy learning how the earth was formed, and how life and human culture emerged from it.

At the heart of it is the “Shirataki Geopark Exchange Center”. Inside, exhibitions showcase the allure of Shirataki obsidian and the formation of the land through volcanic activity. Displays show how obsidian emerges from magma, and how people in the Paleolithic era crafted it into tools through interactive videos and models.

The Geotour is held annually from July to October, and allows you to go inside actual geosites accompanied by expert guides to get an intimate look at the Earth's magnificent natural forces firsthand. A must for anyone interested in visiting geosites!
The mountaineering tour to Mt. Akaishi, the obsidian’s birthplace, is especially popular.

Shirataki Geopark Exchange Center

Basic Information
【Address】〒099 0111 Hokkaido, Mombetsu District, Engaru Town, Shirataki 138 1
【Hours】9:00–17:00 (last admission 16:30)
【Closed】Year end & New Year’s holidays
【Admission】Free
【Access】About 15 minutes on foot from JR Shirataki Station, about 5 minutes by car from Shirataki IC
【Official Site】Shirataki Geopark Exchange Center

The Obsidian Stone Tools Excavated from the Shirataki Archaeological Sites were designated a National Treasure on June 27, 2023 (Reiwa 5).
A total of 1,965 items were collectively designated: 1,514 stone tools and 451 sets of fragments for assembly.
These artifacts are outstanding in both content and quantity among Japan’s Paleolithic relics, and are considered invaluable and significant even on a global scale.

At the “Engaru Archaeological Heritage Center,” you can view the display of the National Treasure Obsidian Stone Tools from the Shirataki Archaeological Sites and learn about the process of tool making. The center also offers hands on experiences such as obsidian crafting, making it a perfect place to engage directly with the ancient past.

Engaru Town Buried Cultural Heritage Center

Basic Information
【Address】〒099 0111 Hokkaido, Mombetsu District, Engaru Town, Shirataki 138 1 (2nd floor of Shirataki Geopark Exchange Center)
【Hours】9:00–17:00 (last admission)
【Closed】Year end & New Year’s holidays
【Admission】Adults: ¥320 (Groups: ¥260)
High school students and younger: ¥160 (Groups: ¥130)
* For participatory programs, additional learning fees apply: Adults ¥110, High school & younger (including preschoolers) ¥60
【Access】About 15 minutes walk from JR Shirataki Station, about 5 minutes by car from Shirataki IC
【Official Website】Shirataki Geopark Exchange Center

Within Shirataki Geopark, there are many “geosites”, points of interest where you can experience the landscapes, rocks, and human history shaped by the earth itself. From waterfalls and cliffs to obsidian outcrops and sweeping highland vistas, these are places where nature speaks its story.

Shirataki’s geosites aren’t just for sightseeing; they are places where we are invited to wonder how rocks formed, or what life was like for people in ancient times. There are many spots that let you expand your imagination. Be sure to visit as many as you can!

After experiencing the earth’s history at Shirataki Geopark, why not venture out into the other areas of Engaru? The four districts, Engaru, Shirataki, Maruseppu, and Ikutahara each offer unique attractions, from natural panoramas to cultural experiences. Based on popularity in local tourist association and travel sites, here are recommended must-sees for use in planning your trip.

Even in the town’s central area, nature thrives, and is brightened by seasonal flowers year-round. Home to one of Japan’s largest cosmos gardens and a new roadside station, along with many sights that truly reflect the spirit of Engaru.

Deep in the heart of the forest, you’ll find a unique area where Hokkaido’s only forest railway still runs, alongside exhibits of fascinating insects. This is a hands-on destination where both children and adults can enjoy learning and playing together, making it perfect for a family trip!

Ikutahara is a place where culture and creativity come alive. From wooden toys to shadow theater, this is the perfect place to relax, explore, and engage with art that sparks your imagination.

Famous spots are nice, but it’s also worth experiencing the lesser-known charms of Engaru that only locals might know.
From tranquil pastures with grazing cows to a railway treasures beloved by railway enthusiasts, and even unique events reflecting the town’s strong ties to the Japan’s Self Defense Force, these offbeat and unique experiences can make your trip especially memorable.

No trip is complete without sampling the local cuisine. Engaru’s food culture, rooted in its vast nature and history, offers plenty of distinctive dishes. From creative obsidian themed cuisine to the sweet, hearty “Shirataki Potatoes” grown in volcanic soil, to the crisp asparagus that proclaims the arrival of spring and summmer, each bite captures the essence of Engaru. Be sure to enjoy these special local flavors alongside your sightseeing!

Throughout the year, Engaru comes alive with seasonal events that showcase the best of the region. From fireworks illuminating summer nights to cosmos festivals with live musical performances and more, these events seamlessly combine nature’s beauty with the warmth and energy of the local community to make memorable moments. Wrapped in a community’s warm atmosphere, these events are sure to add color and excitement to your trip.

Engaru offers a range of lodging options such as Mauresan sō and North King, that run the gamut from forest resorts to cozy onsen inns. Many feature distinctive facilities such as alkaline hot springs, prized for their skin-softening qualities. After a long day of sightseeing or outdoor excursions, they soothe fatigue, help you recharge, and make your stay even more memorable.

Engaru, where you can immerse yourself in the great outdoors of Hokkaido, is accessible by air, train, or car. Flights from Memanbetsu, Asahikawa, or Okhotsk Mombetsu airports, taking the JR Sekihoku Main Line, or driving along scenic car routes are all viable options. Because the town’s attractions are spread over a wide area, renting a car is recommended for efficient sightseeing. Below is a quick guide to reaching Engaru and getting around.

Access Methods to Engaru Town


Engaru Town is a special place in Hokkaido where Japan’s oldest National Treasure whispers ancient memories, Shirataki Geopark tells the earth’s story, and majestic nature shifts through the seasons in harmonious procession. Once formed by merging three towns and a village, this vast town encompasses four unique districts: Engaru, Shirataki, Maruseppu, and Ikutahara each offering different emotional experiences.

Ten million cosmos blooms, obsidian tools of the late Paleolithic era, the nostalgic whistle of a forest railway winding through the trees, serene hot springs and camping under pure blue skies, and the heartfelt smiles of the people you will meet are all treasures awaiting your visit.

Feel the timeless romance exerted by obsidian’s jet black luster. Walk geosites and listen to the earth’s pulse. At night, immerse yourself in the starlit sky, all in Engaru. Let this special experience leave a lasting imprint on your next Hokkaido journey.
Japan’s oldest National Treasure and miraculous natural landscapes await you in Engaru. See you there!

Official Sites
Engaru Town Official
Engaru Town Tourism Association Information in this article was current as of September 2025, prepared under the supervision of the Engaru Town Tourism Association.

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Last Updated : Oct. 23, 2019
Japan
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Explore the National Treasure Obsidian Stone Tools in Engaru, Hokkaido, and Enjoy a Journey Through Shirataki Geopark and Nature Spots!
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