2 ft and 600 mm gauge railways

Track gauge
By transport mode
Rapid transit Tram Miniature Scale model
By size (list)
Minimum   Fifteen inch 381 mm (15 in)   Narrow   600 mm 600 mm (1 ft 11+5⁄8 in) Two foot 610 mm (2 ft) Two foot three inch 686 mm (2 ft 3 in)   750 mm 750 mm (2 ft 5+1⁄2 in) Bosnian gauge 760 mm (2 ft 5+15⁄16 in) Two foot six inch 762 mm (2 ft 6 in)   Swedish three foot 891 mm (2 ft 11+3⁄32 in) 900 mm 900 mm (2 ft 11+7⁄16 in) Three foot 914 mm (3 ft) Italian metre 950 mm (3 ft1+13⁄32 in)   Metre 1,000 mm (3 ft 3+3⁄8 in)   Three foot six inch 1,067 mm (3 ft 6 in)   Four foot 1,219 mm (4 ft)   Four foot six inch 1,372 mm (4 ft 6 in)   1432 mm 1,432 mm (4 ft 8+3⁄8 in)   Standard 1,435 mm (4 ft 8+1⁄2 in)   Broad   Italian broad gauge 1,445 mm (4 ft 8+7⁄8 in) Dresden gauge 1,450 mm (4 ft 9+3⁄32 in)   Leipzig gauge 1,458 mm (4 ft 9+13⁄32 in)   Toronto gauge 1,495 mm (4 ft 10+7⁄8 in)   1520 mm 1,520 mm (4 ft 11+27⁄32 in) Five foot 1,524 mm (5 ft)   Pennsylvania gauge 1,581 mm (5 ft 2+1⁄4 in) Pennsylvania gauge 1,588 mm (5 ft 2+1⁄2 in) Five foot three inch 1,600 mm (5 ft 3 in)   Baltimore gauge 1,638 mm (5 ft 4+1⁄2 in)   Iberian gauge 1,668 mm (5 ft 5+21⁄32 in) Five foot six inch 1,676 mm (5 ft 6 in)   Six foot 1,829 mm (6 ft)   Brunel 2,140 mm (7 ft 1⁄4 in)   Breitspurbahn 3,000 mm (9 ft 101⁄8 in)
Change of gauge
Bogie exchange Break of gauge Dual gauge Conversion list Variable gauge
By location
North America South America Europe Australia

Two foot and 600 mm gauge railways are narrow gauge railways with track gauges of 2 ft (610 mm) and 600 mm (1 ft 11+5⁄8 in), respectively. Railways with similar, less common track gauges, such as 1 ft 11+3⁄4 in (603 mm) and 1 ft 11+1⁄2 in (597 mm), are grouped with 2 ft and 600 mm gauge railways.

Most of these lines are tourist lines, which are often heritage railways or industrial lines, such as the Ffestiniog Railway in Wales and the Cripple Creek and Victor Narrow Gauge Railroad in Colorado.

World War I trench railways produced the greatest concentration of 600 mm (1 ft 11+5⁄8 in) gauge railways to date. In preparation for World War II, the French Maginot Line and Alpine Line also used 600 mm (1 ft 11+5⁄8 in) gauge railways for supply routes to the fixed border defenses.

Australia has over 4,000 kilometres (2,500 mi) of 2 ft (610 mm) gauge sugar cane railway networks in the coastal areas of Queensland, which carry more than 30 million tonnes of sugar cane a year.

Many 2 ft (610 mm) gauge and 600 mm (1 ft 11+5⁄8 in) gauge railways are used in amusement parks and theme parks worldwide.

The interchange of rolling stock between these similar track gauges occasionally occurred; for example, the South African Class NG15 2-8-2 locomotives started their career on the 600 mm (1 ft 11+5⁄8 in) gauge. The Otavi Mining and Railway Company in South West Africa (now Namibia) were transferred to the 2 ft gauge railways in South Africa and currently some surviving locomotives reside in Wales on the 1 ft 11+1⁄2 in (597 mm) gauge Welsh Highland Railway and the 1 ft 11+3⁄4 in (603 mm) gauge Brecon Mountain Railway.

• Decauville
• Heritage railway
• Large amusement railways
• List of track gauges
• Minimum gauge railway