Legend

Luodong (羅東鎮) Yilan-Line (宜蘭線) 0,0 km, 0,0 mi Chu-lin (竹林) 3,0 km, 1,9 mi (歪仔歪) 6,0 km, 3,7 mi ([大洲車站] Error: [undefined] Error: {{Lang}}: no text (help): invalid parameter: |3= (help)) 10,3 km, 6,4 mi (二萬五) 14,5 km, 9,0 mi Sanxing (三星) 18,0 km 11,2 mi Tien-sung-pi (天送埤) 21,4 km, 13,3 mi Qingshui (清水) 23,8 km, 14,8 mi (牛鬪) 29,5 km, 18,3 mi Zhuoshui (濁水) 36,4 km, 22,6 mi (土場) Taiping Mountain Railway

The Luodong Forest Railway or Bong Bong Train (traditional Chinese: 羅東森林鐵路; simplified Chinese: 罗东森林铁路; pinyin: Luódōng Sēnlín Tiělù) was a 36.4 km (22.6 miles) long narrow gauge forest railway with a gauge of 2 ft 6 in (762 mm) near Luodong in Yilan County, Taiwan. The track was opened in 1924 and closed in 1979. A section will be re-used for tourist trains.

The Luodong Forest Railway was inaugurated on 27 January 1924 for goods services. Passenger transport commenced in May 1926 with 10 stations.

In 1970 Lin-Tailong railway station north of Luodong railway station was inaugurated. Chinese diesel rail cars were introduced in 1971, to improve the quality for the passengers while reducing the operating cost. The goods volume of forest produce declined after 1976, and passenger transport lost in importance due to increasing road traffic.

The track required many wooden bridges, and as a consequence it was prone to flood damage. Thus the track was de-commissioned on 1 August 1979 after 56 years of service. In August 2019, Wu Tze-cheng stated that the railway would be rebuilt in two phases, for a total cost of NT$8 million.

• 
  Luodong Forest Railway on the Tsaiqiao Bridge
• 
  Alishan Forest Railway

The railway was an extension of the Taiping Mountain Forest Railway. There were ten stations along the track, which passed seven tunnels and 17 or 22 bridges. A single trip lasted approximately 2 hours and 50 minutes.

Name	Chinese	Taiwanese	Hakka	Distance (km)	Transfers and Notes	Location
Lo-tung	羅東	Lô-tong	Lò-tûng	-0.6	Yilan line: Luodong	Luodong	Yilan
Chu-lin	竹林	Tek-lîm	Chuk-lìm	0.0
Wai-tzŭ-wai	歪仔歪	Oai-á-oai	Vâi-è-vâi	3.04
Ta-chou	大洲	Toā-chiu	Thai-chû	5.92		Sanxing
Wan-fu	萬富	Bān-pù	Van-fu	10.24
San-hsing	三星	Saⁿ-chheⁿ/chhiⁿ	Sâm-sên	14.50
Tien-sung-pʻi	天送埤	Thian-sàng-pi	Thiên-sung-phî	18.02	Limited tourist service around station
Chʻing-shui-hu	清水湖	Chheng-chúi-ô͘	Tshîn-súi-fù	21.38
Niu-tou	牛鬥	Gû-tàu	Ngiù-teu	23.78
Lê-shui	樂水	Lo̍k-chúi	Lo̍k-súi	29.38		Datong
Tʻu-chʻang	土場	Thô͘-tiûⁿ	Thú-chhòng	36.64	→ Taiping Mountain Forest Railway

The rails were lifted and scrapped after de-commissioning, and the bridges and tunnels collapsed over time. There are still some railway station buildings and similar buildings as well as tunnels, dams and bridge pillars, of which some are listed as cultural heritage.

Tunnel No 8 of 1921 is still in sound condition fertiggestellte Tunnel Nr. 8 is well preserved and has been listed in July 2012 as a Grade II listed historic building. It is near the Lan Yang CreekDamm, approximately 350 metres off the settlement of the Zhiban tribe. It is only 40 m (44 yards) long. At its entrance are concrete vaults and in other areas solid rock of slate. The interior was originally reinforced by wooden struts which have disappeared over time.

• 
  Tien-sung-pi railway station
• 
  Turntable in Tien-sung-pi
• 
  Chu-lin railway station
• 
  Luodong Forestry Culture Park

New railway tracks were laid on both sides of the road at Tien-sung-pi railway station. New rolling stock in the historic style was manufactured and successfully tested. A 3.9-km-long piece of track is planned to be used for regular heritage trains starting with effect of October 2017.

Wikimedia Commons has media related to Luodong Forest Railway.

• 從八仙山到太平山 羅東林鐵的蒸汽機車傳奇 [From Baxian Mountain to Taiping Mountain. Legend of the Luodong Steam Railway]. blog.xuite.net. 15 July 2014.
• 走訪羅東森林鐵路的軌跡 探訪千年檜木的的旅程 [Visit Luodong Forest Railway]. Luodong-Lin Forest Office. 26 January 2016. Retrieved 10 August 2016.

24°39′45″N 121°37′12″E / 24.662518°N 121.619969°E / 24.662518; 121.619969