Dauphiné Prealps

The Dauphiné Prealps (Préalpes du Dauphiné) are a mountain range in the south-western part of the Alps. They are located in Rhône-Alpes and, marginally, in Provence-Alpes-Côte d'Azur (south-eastern France). Dauphiné Prealps are the central section of the French Prealps.

Etymology
The Dauphiné is a historical region whose area roughly corresponded to that of the present departments of Isère, Drôme, and Hautes-Alpes.

Geography
Administratively the French part of the range belongs to the French departments of Isère, Drôme, Hautes-Alpes and, marginally, Alpes-de-Haute-Provence. The whole range is drained by the Rhône river.

SOIUSA classification
According to SOIUSA (International Standardized Mountain Subdivision of the Alps) the mountain range is an Alpine section, classified in the following way:
 * Main part = Western Alps
 * Major sector = South Western Alps
 * Section = Dauphiné Prealps
 * Code = I/A-6

Borders
Dauphiné Prealps' borders are (anticlockwise):


 * Isère (north);
 * Drac, Col Bayard - which connects them with Dauphiné Alps - and Durance (east)
 * Buëch, Col de Macuègne - which connects them with Provence Alps and prealps - and Toulourenc river (south);
 * Rhone and Isère valleys (west).

Subdivision
The Dauphiné Prealps are divided into five Alpine subsections:
 * Dévoluy Mountains - SOIUSA code:I/A-6.I;
 * Massif Céüse-Aujour - SOIUSA code:I/A-6.II;
 * Massif du Vercors - SOIUSA code:I/A-6.III;
 * Massif du Diois - SOIUSA code:I/A-6.IV;
 * Massif des Baronnies - SOIUSA code:I/A-6.V.

Notable summits
Some notable summits of the range are:

Notable passes
Some notable passes of the range are:

Maps

 * French official cartography (Institut Géographique National - IGN); on-line version: www.geoportail.fr