The name is derived from the Lherz Massif, an alpine peridotite complex (also known as orogenic lherzolite complex), (the type locality) at Étang de Lers, near Massat in the French Pyrenees; Lherz is the archaic spelling of this location.
Massat |
The Port de Lers (or Port de l'Hers or Port de Massat, 1,517 m.) is a high mountain pass in the French Pyrenees in the department of Ariège, between the communities of Aulus-les-Bains (west), Massat (north) and Vicdessos (east).