vallées
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Val Calanca | Relief | 13 | 2.8 |
| Val Cairasca | Relief | 4 | 0.3 |
| Val Bregaglia | Relief | 24 | 10.5 |
| Val Bognanco | Relief | 6 | 0.3 |
| Val Bisagno | Relief | 7 | 0.7 |
| Val Badia | Relief | 20 | 2.5 |
| Vaituha | Relief | 2 | 0.3 |
| Utladalen | Relief | 7 | 0.1 |
| Urseren | Relief | 14 | 1.7 |
| Tyropϙn | Relief | 12 | 1.1 |
| Tuxertal | Relief | 10 | 0.0 |
| Turtmanntal | Relief | 7 | 1.3 |
| Tungudalur | Relief | 3 | 0.6 |
| Tseï | Relief | 7 | 0.3 |
| Trouée des Marches | Relief | 2 | 0.3 |
| Trouée D'annecy | Relief | 1 | 0.0 |
| Trou de Fer | Relief | 12 | 31.5 |
| Trou de Bozouls | Relief | 3 | 25.3 |
| Trou Blanc | Relief | 1 | 0.5 |
| Trotters Gorge | Relief | 2 | 0.0 |
| Trossachs | Relief | 14 | 3.7 |
| Trois Gorges | Relief | 24 | 9.4 |
| Trièves | Relief | 6 | 38.7 |
| Treasure Valley | Relief | 3 | 0.0 |
| Trans-pecos | Relief | 10 | 0.7 |
| Torrent du Manival | Relief | 2 | 0.5 |
| Tornédalie | Relief | 23 | 1.9 |
| Topanga Canyon | Relief | 3 | 10.0 |
| Toodyay Valley | Relief | 2 | 0.0 |
| Titus Canyon | Relief | 5 | 0.2 |
| Tilemsi | Relief | 4 | 0.8 |
| Tijeras Canyon | Relief | 5 | 0.0 |
| The Narrows | Relief | 8 | 0.6 |
| Taminaschlucht | Relief | 3 | 0.1 |
| Takamaka | Relief | 2 | 10.1 |
| Taghlit | Rivière | 2 | 0.0 |
| Tafassasset | Rivière | 2 | 0.0 |
| Sōunkyō | Relief | 7 | 0.5 |
| Sîq | Relief | 18 | 9.8 |
| Swaledale | Relief | 8 | 0.3 |
| Styx du Verdon | Relief | 3 | 3.2 |
| Stubaital | Relief | 16 | 2.9 |
| Strathspey | Relief | 17 | 1.4 |
| Strathgryfe | Relief | 3 | 0.0 |
| Strathearn | Relief | 12 | 1.1 |
| Stjørdalen | Relief | 10 | 0.1 |
| Stangala | Relief | 2 | 4.2 |
| Standley Chasm | Relief | 3 | 0.0 |
| Stallental | Relief | 5 | 0.0 |
| Sossusvlei | Relief | 26 | 15.8 |