Here are links to sites for anyone planning a walking or cycling trip to the area. There are links to general sites, such as the Rondo-Pyrenees Audioses, and also to places for more detailed information for a particular route, such as the voie verte.
Voie Verte “Le chemin des Filatiers” Lavelanet to Mirepoix, 38km
AF3V
http://www.af3v.org/-Fiche-VVV-.html?voie=221#
Official site for the various green cycling and walking networks in France. This pages provides details of the Lavelanet to Mirepoix route. There’s a map, a detailed description, photos and information about places to stop en route. This is the best place to start when planning a walk or ride along the route.
Rondo-Pyrenees Audioses: Voie Verte page
https://www.rando-pyreneesaudoises.com/randonnée-itinérante/voie-verte/
For a description of the route and to download the official brochure, which includes a high-level map.
Traverse 119
http://traverse119.fr
This is the organisation that campaigns to maintain and improve the voie verte that runs between Lavelanet to Mirepoix – great for cyclist, walkers and equestrians. There’s information on their site about places to stay and places to stop along the way. In French with an English language translation available.
Rando-Pyrenees Audioses
https://www.rando-pyreneesaudoises.com
This is an excellent resource with graded walking routes, from simple, short (tres facile) walks suitable for the family through to day hikes (sportifs) and multi-day tours on long-distance footpaths, such as the Sentier de Cathare (GR367) and Voie Verte.
Voie Verte – All of France
http://www.voiesvertes.com
Provides an overview map showing all of the voie verte routes in France with detailed information about those shown in red on the map. Click the red line to access the information.