Overall, Huguenot presence was heavily concentrated in the western and southern portions of the French kingdom, as nobles there secured practise of the new faith. These included Languedoc-Roussillon, Gascony and even a strip of land that stretched into the Dauphiné. Huguenots lived on the Atlantic coast in La Rochelle, and also spread across provinces of Normandy and Poitou. In the south, towns like Castres, Montauban, Montpellier and Nimes were Huguenot strongholds. In addition, a dense network of Protestant villages permeated the rural mountainous region of the Cevennes. Inhabited by Camisards, it continues to be the backbone of French Protestantism. Historians estimate that roughly 80% of all Huguenots lived in the western and southern areas of France.