太平山的蹦蹦車，昔日主要用於載運原木，其真正的名稱是"山地運材軌道車"。太平山運材軌道共鋪設16線，總長度達一百多公里，其中茂興線是太平山山地軌道橋樑最多、最具運材軌道代表性的路段，從太平山出發，沿線有太平山站、萬石(現稱茂興)、曙、壽、吉野等5個車站，長度約20.9公里，於1937 年開始林木生產，1979 年停運。1985年重新辦理茂興線山地軌道運材修復，長度3公里，從太平山至茂興，並將山地軌道運材車整修為可供遊客搭乘之車廂，並於1991年依據"機械遊樂設施管理辦理"取得合格證明後，以蹦蹦車為名，同年11月正式對外營運。蹦蹦車命名由來有兩說法，一說是過去運材軌道，軌條是分段拼接而成，由於路基不平整，火車行經軌條的接縫處，發出蹦蹦聲，因而得名；另一說是柴油機關車的煙囪冒煙，其煙蓋上下合閉，發出蹦蹦聲。蹦蹦車創造了台灣現代的觀光台車文化，也保留過去林業生產機具文化，搭乘蹦蹦車開放式車廂的台車，沒有窗戶隔離，遊客在乘車過程中，穿梭樹林、鐵橋，自由呼吸森芬多精，擁抱大自然的氣息，是來太平山最獨特的遊憩體驗
座標 Coordination
N24 58.210 E121 32.303
Taipingshan used to be a forest farm and the indispensable equipment, such as cableway, cabin, forest railway and steam-skidder etc., are still well preserved. Among them, Bong Bong Train played an important role in transporting timber between different locations in the early days. One of the most popular tourist attractions of ecotourism in Taipingshan, the Maosing Line was restored in 1985 and re-operated in 1991. The Bong Bong train station is on the left side of central stairway at Taipingshan Villa. The Maosing Line is 3 km long and it takes 20 minutes to arrive at the terminal- Maosing Station. At Maosing Station, you will also find a self-guided forest trail, a native ferns garden and Maosing National Forest Trail. As the orange-yellow colored Bong Bong train moving slowly along the slope and heading to Maosing Station, it will make the peculiar sound of“Bong Bong”resonating in the valley, which is the reason why people give the name to it. On the Bong Bong train, you can find various wild flowers, like Gleichenia japonica, Unigemmate China Fern and Common Foxglove, swung in the wind on your right and a broad view of mountains on your left. Both in good weather and in foggy days, the views you see from the Bong Bong Train are like picturesque paintings.
cited from 林務局