Guide
The Kobotoke Sekisho Ruins (Kobotoke Sekisho-ato) are the remains of a vital checkpoint located on the Koshu Kaido highway in Hachioji, Tokyo. Situated near Mt. Takao at the border between Musashi and Sagami provinces, this site played a crucial role in regulating traffic during the Edo period. Now designated as a National Historic Site, the area preserves stone structures that offer a glimpse into the past. The surrounding environment is rich in nature, making it a popular destination for both history enthusiasts and hikers, as well as a famous spot for viewing plum blossoms.
The history of this checkpoint dates back to the Sengoku (Warring States) period. It is said to have been established by Hojo Uteru at the top of Kobotoke Pass during the Tensho era (1573–1592). Later, in 1580, the checkpoint was moved to its current location in Komagino. During the Edo period, it functioned as a highly secure checkpoint on the Koshu Kaido, strictly controlling the passage of weapons and women.
The checkpoint was managed by a dedicated team of approximately four guards. These officials were granted land nearby and played a significant role in the local community. The checkpoint was eventually abolished in 1869 following a government decree. In 1928, the site was designated as a National Historic Site, and it remains carefully preserved today as a precious piece of Japanese history.
The most fascinating part of the Kobotoke Sekisho Ruins is the stone structures that illustrate the inspection process of the time. Specifically, you can see the "Tegata-ishi" (handprint stone), where travelers would place their hands to register, and the "Tsuki-ishi" (resting stone), where people would rest their hands while waiting for inspection. These stones provide a tangible connection to how travelers were processed centuries ago.
You can also visualize the original structure of the checkpoint through historical records. The site once featured East and West gates, with a guardhouse located to the north. The surrounding landscape, with its rivers and bamboo fences (Takeyarai) used for regulation, allows you to imagine the strict traffic management of the era.
As this is an outdoor historical site, there are no specific opening hours. The site is particularly beautiful in the spring when the plum blossoms are in full bloom. It is also a wonderful place for a seasonal stroll, as the natural scenery changes beautifully throughout the year.
The main activity here is exploring the historical ruins and walking through the natural landscape. You can learn about the transport systems and regulations of the Edo-period highways by observing the preserved stone artifacts. Most visitors combine their visit with hiking or walking to enjoy the fresh air and historical atmosphere.
The ruins are located in a lush, natural area leading toward the famous Mt. Takao. Beyond the historical sites, you can enjoy various hiking trails. Hachioji also boasts many other historical landmarks and cultural assets, which you can explore to deepen your understanding of Japanese history.
Since this is an open-air historical site, please keep the following in mind: