Yusaya Ryokan Storehouse

Introduction

Tucked away behind the main building of one of Naruko Onsen's most storied hot spring inns, the Yusaya Ryokan Storehouse (土蔵) stands as a quiet yet compelling testament to early twentieth-century Japanese construction in a volcanic mountain setting. Registered as a National Tangible Cultural Property in October 2000, this Taishō-era (1912–1925) warehouse is part of the broader Yusaya Ryokan complex — an inn whose origins trace back to 1632 when the Yusa family was entrusted by the Date clan with the stewardship of Naruko's sacred hot springs. While guests flock to the inn for its legendary "Unagi-yu" alkaline waters, the storehouse offers a fascinating window into the architectural ingenuity of its time.

Historical Background

Yusaya Ryokan has operated continuously for nearly 390 years in the heart of the Naruko Onsen district in Ōsaki City, Miyagi Prefecture. The inn was founded in the Kan'ei era (1632) when the Yusa family received the role of "yu-mori" — guardians of the hot springs — from the ruling Date domain. Over the centuries, the inn weathered fires, rebuilding, and the modernization of Japan, all while maintaining its role as a cornerstone of the Naruko hot spring community.

The storehouse was built during the Taishō period (1912–1925), an era when Japan was rapidly absorbing Western construction techniques while still preserving traditional building wisdom. Positioned across the road from the main inn building, on the inner portion of an adjacent lot, the storehouse served as secure storage for the inn's valuable goods and supplies — a critical function for any long-established ryokan in a remote mountain hot spring town.

Why It Was Designated a Cultural Property

The Yusaya Ryokan Storehouse was registered as a National Tangible Cultural Property (登録有形文化財) on October 18, 2000, under the registration criterion of being a structure that would be difficult to reproduce. This designation was part of a broader registration that included the Yusaya Ryokan Main Building and other related structures in the Tōhoku region.

Several factors contributed to its cultural significance. The storehouse employs a rare structural technique known as "ki-suji konkurīto" (木筋コンクリート) — a hybrid system combining a timber frame with concrete reinforcement. This method represents a transitional moment in Japanese architecture when builders experimented with merging traditional timber-based construction with emerging concrete technology. Additionally, the building features distinctive arched openings and a lower wall finished in artificial stone with a washed-aggregate, stone-joint pattern — design details that reflect the aesthetic sensibilities of the Taishō period. As a fire-prevention zone, the Naruko hot spring district would require any new construction to be built with reinforced concrete, making this surviving wooden-hybrid structure especially precious.

Architectural Highlights

The storehouse is a compact two-story timber structure with a tiled roof, occupying a building area of approximately 35 square meters. Its form is a gabled (kirizuma-zukuri) design with the entrance oriented on the gable end (tsuma-iri), giving it a distinctive frontal appearance. On the northwest-facing gable side, a lean-to extension (geya) with a single-slope roof creates a sheltered entry porch known as a "kura-mae" — the traditional anteroom of a Japanese storehouse.

The lower walls feature an artificial stone finish using the "arai-dashi" (washed-out aggregate) technique with stone-joint patterning, a method popular during the Taishō and early Shōwa periods for its durability and handsome appearance. The arched window and door openings add a Western-influenced decorative touch, reflecting the eclectic architectural spirit of the era. The "ki-suji konkurīto" (timber-reinforced concrete) structural system is particularly noteworthy — it represents a hybrid approach that was occasionally employed in Japan during this transitional period of construction technology.

Visitor Information

The Yusaya Ryokan Storehouse is located across the road from the main inn building and can be viewed from the street when visiting the Naruko Onsen district. As a working part of the ryokan complex, the interior is not generally open to the public, but its exterior architectural details — the arched openings, washed-aggregate walls, and traditional storehouse form — can be appreciated from the road.

Guests staying at Yusaya Ryokan can enjoy the full cultural property experience, including the registered main building with its Shōwa-era timber architecture, the famous Unagi-yu hot spring, and the atmospheric hot spring town. The ryokan is a four-minute walk from JR Naruko Onsen Station on the Rikuu East Line. By car, it is approximately 40 minutes from Furukawa Interchange on the Tōhoku Expressway via National Route 47.

Surrounding Attractions

The Naruko Onsen district and its surrounding area offer a wealth of experiences for visitors. The neighboring communal bathhouse Taki-no-Yu, a reconstructed Edo-period bathhouse just steps from Yusaya Ryokan, is one of the most atmospheric public baths in the Tōhoku region. Naruko Onsen is also renowned as the birthplace of Naruko kokeshi dolls — the Japan Kokeshi Museum displays around 5,000 traditional dolls and offers painting workshops.

Nature lovers will be drawn to Naruko Gorge (Naruko-kyō), a spectacular V-shaped canyon approximately 100 meters deep that is famous for its autumn foliage in October and November. The mysterious Kata-numa, a caldera lake with vivid emerald waters and one of Japan's most acidic bodies of water, offers stand-up paddleboarding in warmer months. Further afield, the Onikōbe area features dramatic geysers that erupt every ten minutes, sending columns of hot water up to 15–20 meters into the air. The Naruko Dam, the first arch dam in Japan built entirely by Japanese engineers, completed in 1957, is another notable landmark along the scenic route.