The three most popular mountains in Neihu are: Zhongyong Mountain, Liyu Mountain and Yuanjuejian Mountain; they are also known as the “Three Mountains of Neihu”.
Their altitudes are 325, 223 and 290 meters, respectively. Zhongyong Mountain is the largest ridge of Wuzhi Mountain, and is a typical pointed-shape mountain. Liyu Mountain is high at one end and low on the end, making it shaped like a carp. Yuanjuejian Mountain is smaller, and derives its name from the Yuanjue Temple at its hillside.
Liyu Mountain
Liyu Mountain is located at the south-eastern side of Zhongyong Mountain and the two mountains are connected. Its name is derived from its head-high and tail-low shape, which resembles a carp. Some people also called it the Xiaokengjian Mountain. Viewed from the sides of the mountain, one can see the steep cliffs and dense forest gradually extending toward the bottom, which is a marvelous sight indeed that promises to lift your spirit right away.
內湖人氣極佳的三座郊山包括忠勇山、鯉魚山及圓覺尖山，又叫內湖三尖。
海拔高度分別為325公尺、223公尺及290公尺，忠勇山為五指山最大支稜，山形成典型的尖峰狀，因此又稱為大尖山，鯉魚山山形則頭高尾低狀似鯉魚，又有小尖坑山之稱，圓覺尖山則山勢較小，山腰有圓覺禪寺而得名。
鯉魚山
鯉魚山位於忠勇山東南方，兩山連稜，有顆四等三角點，整座山勢呈頭高尾低，因酷似鯉魚而得名，也有人稱小坑尖山，若由兩旁斜坡望去，可見陡峭山勢和濃密樹林延伸至山腰下的自然景象，非常好看。
沿途步道兩旁由山友創作、各式各樣的「小人國」造景造型互異，不但讓人大開眼界，從台灣北到南的台北車站、石門水庫、鵝鑾鼻燈塔等重要地標，到日本的日光華嚴瀑布，乃至於聞名世界的萬里長城，型態雖小卻唯妙唯肖。
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