Cape Myōgane (明鐘岬, Myōgane-misaki) is a cape located on the border of Futtsu and Kyonan, Chiba, Japan, where Mount Nokogiri on its western end precipitously falls into the Uraga Channel to Tokyo Bay. Cape Myōgane marked the eastern border between Awa Province and Kazusa Province in pre-modern Japan. The area surrounding the cape is mountainous and known from early times as an area difficult to traverse by land. Cape Myōgane, due to its strategic location over the Uraga Channel, was also a noted defensive position. By the Meiji period (1868–1912) one tunnel was constructed near the cape to allow easier passage in the area. A railroad tunnel was completed in 1917 under the area between Cape Myōgane and Mount Nokogiri. Now called the Nokogiriyama Tunnel, it spans 1.251 kilometres (0.777 mi) a