is a

mountain pass A mountain pass is a navigable route through a mountain range or over a ridge. Since many of the world's mountain ranges have presented formidable barriers to travel, passes have played a key role in trade, war, and both Human migration, human a ...

in the north-end of the

Hidaka Mountains is a mountain range in southeastern Hokkaido, Japan. It runs from Mount Sahoro or Karikachi Pass in central Hokkaidō south, running into the sea at Cape Erimo. It consists of folded mountains that range from in height. Mount Poroshiri is ...

Hokkaidō is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The la ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. The pass traverses the mountains at and is long. The road is wide with a maximum grade of 6%. The minimum curve radius is . Snow is possible on the pass from October to April.

Japan National Route 237 National Route 237 is a national highway of Japan connecting Asahikawa, Hokkaidō is a city in Kamikawa Subprefecture, Hokkaido, Japan. It is the capital of the subprefecture, and the second-largest city in Hokkaido, after Sapporo. It has b ...

crosses the pass between Hidaka and

Shimukappu is a village located in Kamikawa Subprefecture, Hokkaido, Japan. As of September 2016, the village has an estimated population of 1,251 and a density of 2.2 persons per km². The total area is 571.31 km². Tomamu Tomamu in the eastern p ...

.Hidaka topographical map
of the

Geographical Survey Institute The , or GSI, is the national institution responsible for surveying and mapping the national land of Japan. The former name of the organization from 1949 until March 2010 was Geographical Survey Institute; despite the rename, it retains the same ...

, last access 4 June 2008

References

Geographical Survey Institute

Mountain passes of Japan {{Hokkaido-geo-stub