Larrun (modern French: La Rhune, IPA: [la'run], - 'good pasture', possibly a folk etymology, in French until the 20th century: Larhune ) is a mountain (905 m) at the western end of the Pyrenees. It is located on the border of France and Spain, where the traditional Basque provinces of Labourd and Navarra meet. Its prominence is 670 m.