Ordered by the number of climbs recorded. About limestone.
| Crag | Location | # Climbs |
|---|---|---|
| El Convento | Spain / Basque Country / Álava | 1 |
| Tournoux | France / Provence-Alpes-Côte d'Azur / Hautes-Alpes | 1 |
| Cascade de Doran | France / Auvergne-Rhône-Alpes / Haute-Savoie | 1 |
| Cleeve Hill | United Kingdom / England / Gloucestershire / Cheltenham | 1 |
| Pierrot Beach | France / Auvergne-Rhône-Alpes / Isère | 1 |
| Fìgols | Spain / Catalunya / Lleida | 1 |
| Third Sister To Zulu Zawn | United Kingdom / Wales / Swansea / Swansea | 1 |
| Odin Cave | United Kingdom / England / Hope Valley | 1 |
| Middletown Quarry | United Kingdom / Welshpool | 1 |
| Planetarium | Germany / Bavaria / Upper Franconia | 1 |
| Roda di Vaèl | Italy / Trentino-South Tyrol / Autonomous Province of Bolzano – South Tyrol | 1 |
| Ebbor Gorge | United Kingdom / England / Somerset / Wells | 1 |
| Palionisos | Greece | 1 |
| Tom's Cave | United Kingdom / England / Hope Valley | 1 |
| Endorama | Germany / Bavaria / Upper Franconia | 1 |
| Bailey Quarry | United Kingdom / England / Herefordshire / Ross-on-Wye | 1 |
| Gun Cliff | United Kingdom / Wales / Pembroke | 1 |
| Sand Point | United Kingdom / England / Weston-super-Mare | 1 |
| Penally East | United Kingdom / Wales / Tenby | 1 |
| Correges Cumb | United Kingdom / England / Somerset / Wells | 1 |