Ōsaka no Seki, Ancient checkpoint in Shiga district, Japan.
Located between Yamashiro and Omi provinces, Osaka no Seki controlled travel and commerce along the Tokaido and Tosando roads in medieval Japan.
The checkpoint, established in 646 and later reinstated in 857, formed part of the Sangen system alongside Fuwa no Seki and Suzuka no Seki barriers.
This strategic point appears in classical Japanese literature, including poems by Semimaru and Sei Shonagon in works like Hyakunin Isshu and Makura no Soshi.
Modern visitors can find a commemorative monument next to Osakayama Checkpoint in Otani-cho, Otsu City, near the Choan-ji Temple location.
During the Kamakura period, the Enjo-ji Temple managed the checkpoint, implementing a toll system for travelers crossing through the barrier.
Location: Shiga district
Inception: 646
Part of: Sankan
GPS coordinates: 34.99424,135.85569
Latest update: May 27, 2025 08:42
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