Narrow-gauge railways in the Netherlands
Numerous industrial narrow-gauge lines were built for peat extraction, clay extraction for brickworks and construction sites. The dominant gauge for industrial lines was 700 mm (2 ft 3+9⁄16 in), contrary to the 600 mm (1 ft 11+5⁄8 in) gauge used in neighbouring countries.
Source: Wikipedia — Narrow-gauge railways in the Netherlands (CC BY-SA 4.0)