Narrow-gauge railways in Latvia
Around 1935, Latvian narrow-gauge railways consisted of 536 km (335 miles) of 600 mm (1 ft 11+5⁄8 in) gauge, 432 km (270 miles) of 750 mm (2 ft 5+1⁄2 in) gauge, and 48 km (30 miles) of meter gauge. One public, one museum, and some industrial peat railways survive.
Source: Wikipedia — Narrow-gauge railways in Latvia (CC BY-SA 4.0)