 The San'indō, however, continued to be important, and highly trafficked through the Edo period (1603-1867).Running mostly east–west, its eastern terminus, along with those of most of the medieval highways (街道, "kaidō"), was at Kyoto.From there it followed the coast of the Sea of Japan to Hagi, near Shimonoseki, the western terminus of both the San'yōdō and the San'indō, and very near the westernmost end of the island of Honshū.