翠峰步道(Blue Gate 1 and Blue Gate 2)位於林務局南投林區管理處轄區內的”瑞岩溪野生動物重要棲息環境”，本保護區地處南投縣仁愛鄉，面積2,574公頃，海拔高度從1210公尺至3416公尺(步道海拔約1800M)。區內植被包括原生闊葉樹林、針闊葉樹混交林、針葉樹林、高山灌叢與草生地等山地植物相。更蘊藏著豐富的鳥類相、哺乳動物相、森林溪流生態系及其他各類生物資源。

本區域於民國八十年十月設置成為野生動物重要棲息環境，林務局南投林區管理處除派駐巡視員進行定期與不定期巡視外，並以任務編組方式調查區內的自然資源，目前已知之植物種類有146科816種，哺乳類動物12科26種，鳥類34科116種，爬蟲類5科20種及兩棲類4科9種，魚類3科4種。

依據森林法規定，民眾或學術機關團體進入本區域請先填寫申請書(如後附)送至林務局南投林區管理處辦理進入許可。

翠峰步道又稱水管路，佈滿了附近地區引水用的水管，因此步道長年濕滑泥濘，強烈建議穿著雨鞋或防水鞋類進入步道賞鳥。

Blue Gate 1 and Blue Gate 2 are under the jurisdiction of Nantou Forest District Office, Forestry Bureau, “Rueiyan River Wildlife Habitat Reserve”. This reserve is located in Renai township, Nantou County, with 2,574 hectares of coverage, from elevation of 1,210 meters to 3,416 meters (trail is at approximately 1800 meters). Vegetation in the reserve includes: deciduous forest, coniferous and broad-leaf mixed forest, coniferous forest, Alpine bush woods, and grass land, etc. The forests contain abundant species of birds, mammals, fishes in forest streams and various kinds of other eco-resources.

This region was established as the Wildlife Habitat Reserve in October, 1991. The Forestry Bureau of Nantou Forest District Office arranged periodic patrols to inspect the grounds, and also organize groups to examine ecosystems in the forests. At present, there are 146 families and 816 species of known plants; 12 families and 26 species of mammals; 34 families and 116 species of birds; 5 families and 20 species of reptiles; 4 families and 9 species of amphibians; and 3 families and 4 species of fishes.

According to the Law of Forestry, those wishing to enter the reserve (the general public or representatives of academic institutions) will be asked to fill out an application (see below) and send to the Forestry Bureau of Nantou Forest District Office for approval.. Methods of delivery include:

Blue Gate 1 and Blue Gate 2 are also known as the “Waterpipe Road” because of the flexible plastic waterpipes that lie alongside the trail. These pipes carry water from the mountain river down to the communities below. Some of the pipes leak, resulting in continually wet and muddy places, made worse by rain. Rain boots or waterproof hiking boots are strongly recommended for walking the trails.