【 Type of attraction open for tourism 】

• Length of trail: About 27.5km.
• Time required for the trip: At least 4-5 days.
• Difficulty: Higher difficulty.

【 Management 】

• Environmental limit: Not sensitive to ecological environment.
• Intensity of development/Type of facility: To keep the area as this is, the area should be banned from major exploration and only local repairs shall be provided to the trail at this time. When necessary, number of tourists shall be kept under control, as this is a Type 2 National Trail.

The 27km-long Biyahao Historic Trail is a sector of the historical trial that extends from Tatung in Ilan east to Nanao. With the aboriginal population along the trail emigrating, the trail turned abandoned after 1945. Nanao, at the exit of the trail and in the southernmost of Ilan County, is served by the Suhua Highway and the North Taiwan Railway, is now an area packed with most Taiya population islandwide.

The Biyahao Historic Trail used to serve the Shakadan Group of the Taiya Tribe when traveling upstream of the Dajia River across the Siyuan Path before proceeding eastward to Nanao River and Dazhuoshui river and the trip covers the mountain trails in Siji and Nanao. During the Japanese Occupation, the Japanese into taming access roads to the local police force converted the same trail. Renowned remaining police stations and remains along the trail are the Biyahao Community (Bihou in old days), Moyao Community, Laojinyang (Jinyang in old days), Jigayang Community, Kubabo Community, Jilumoan Community, Mogen Police Station, Gegeju community and Dantang Community among other remains.

The Biyahao Historic Trail is located at 250m~1,880m above sea level. The environment is apt for a wide variety of animals. The exclusive species there are Taiwanese boars, monkeys, weasels, white-faced flying squirrels, red flying squirrels and muntajacs. When it comes to birds, Taiwanese partridges and stripped squirrels. When it comes to birds, blue-belly vultures, eagles, owls, blue magpies, tree magpies, white-ear thrushes, crown thrushes. A few reptiles, such as trimeresurus stejnegeri, ??? and????and amphibious species, like rain frogs, valley toads, tree frogs and Mo’s tree frogs, are around.