Noord-Friesche Locaalspoorweg-Maatschappij

The line spanned approximately 91 kilometers (57 miles) and was built to 1,435 mm (4 ft 8+1⁄2 in) standard gauge.

[2][3] The NFLS had the following passenger stock, all built by Nederlandsche Fabriek van Werktuigen & Spoorwegmaterieel, Amsterdam:[2] The NFLS had the following goods wagons:[2] The rolling stock was all built by Nederlandsche Fabriek van Werktuigen & Spoorwegmaterieel, Amsterdam, except for the two 6,500-liter water tankers, which were built by Nivelles in 1896 and acquired secondhand.

[2] The lines were closed gradually, with some short-term reopenings occurring during the Second World War: Distances are measured from Leeuwarden station.

[5] On 12 June 1927, NS locomotive 7124 derailed near Holwerd and ended up on its side in a canal.

The locomotive was recovered on 23 June and returned to service after repairs were made.