Canton of Mazamet-2 Vallée du Thoré

Mazamet (French pronunciation: ​[mazamɛ]; Languedocien: Masamet) is a commune in the Tarn department in southern France. It is the second-largest component of the Castres-Mazamet metropolitan area.

The canton of Mazamet-1 is an administrative division of the Tarn department, southern France. It was created at the French canton reorganisation which came into effect in March 2015. Its seat is in Mazamet.It consists of the following communes:

Aussillon is a commune in the Tarn department and Occitanie region of southern France.

Bout-du-Pont-de-Larn (French pronunciation: ​[bu dy pɔ̃ də laʁn]) is a commune in the Tarn department in southern France.

Pont-de-Larn (French pronunciation: ​[pɔ̃ də laʁn]; Occitan: Lo Pont de L'Arn) is a commune in the Tarn department in southern France. It is 2 kilometers from Mazamet in the Occitanie region. The town is situated on the river Arn (a tributary of the Thoré) in the Haut-Languedoc Regional Nature Park at the foot of the Montagne Noire. On the sunny side of the Thoré valley, Pont-de-Larn offers residents and guests the ambience of a "country town". There are guest houses and lodges in the vicinity, and marked hiking trails. There is also a tennis club, stadiums, bowling and one of the oldest golf courses in the region, de la Barouge. The village offers a wide selection of shops, restaurants and services. Pont-de-Larn can be the starting point for excursions to the Sidobre, the valley of the Orb and the Caroux Lacaune.

Payrin-Augmontel (French pronunciation: ​[pɛʁɛ̃ oɡmɔ̃tɛl]; Occitan: Pairin e Aut Montel) is a commune in the Tarn department in southern France.

The Montagne Noire (Occitan: Montanha Negra, known as the 'Black Mountain' in English) is a mountain range in central southern France. It is located at the southwestern end of the Massif Central at the juncture of the Tarn, Hérault and Aude departments. Its highest point is the Pic de Nore at 1,210 metres (3,970 ft). The mountain is within the Haut-Languedoc Regional Nature Park. The GSSP for the Tournaisian is near the summit of La Serre hill, in the commune of Cabrières, in the Montagne Noire . The GSSP is in a section on the southern side of the hill, in an 80 cm deep trench, about 125 m south of the summit, 2.5 km southwest of the village of Cabrières and 2.5 km north of the hamlet of Fontès.

Aiguefonde (French pronunciation: ​[ɛɡfɔ̃d]; Occitan: Aigafonda, meaning deep water) is a commune of the Tarn department in southern France.

Ardorel Abbey, formally the Abbey of Our Lady of Ardorel (Latin: Ardorellum; French: Abbaye Notre-Dame d'Ardorel), was a Benedictine then Cistercian monastery located in the modern-day commune of Payrin-Augmontel, Tarn, southwestern France. It was destroyed during the Wars of Religion.

Caucalières (French pronunciation: ​[kokaljɛʁ]; Occitan: Caucalièira) is a commune in the Tarn department in southern France.

Boissezon (French pronunciation: ​[bwasəzɔ̃]; Occitan: Boisseson) is a commune in the Tarn department in southern France. Its inhabitants are known in French as Boissezonnais or as Boissesonols. The village was originally known as Buxodunum, meaning "land of the buxus."

Communauté d'agglomération de Castres Mazamet is the communauté d'agglomération, an intercommunal structure, centred on the city of Castres. It is located in the Tarn department, in the Occitania region, southern France. Created in 1999, its seat is in Castres. Its area is 406.1 km2. Its population was 78,275 in 2019, of which 42,079 in Castres proper.