Ordered by the number of climbs recorded. About limestone.
| Crag | Location | # Climbs |
|---|---|---|
| Carreg y Byg | United Kingdom / England / Shropshire / Oswestry | 1 |
| Oudtshoorn | South Africa / Western Cape / Central Karoo District Municipality | 1 |
| Mont Aiguille | France / Auvergne-Rhône-Alpes / Isère | 1 |
| Skalia | Greece | 1 |
| Cala Lombards | Spain / Illes Balears / Illes Balears | 1 |
| Perles | Spain / Catalunya / Lleida | 1 |
| Richard Wagner Fels | Germany / Bayern / Oberfranken | 1 |
| Gola Di Gorroppu Area | Italy / Sardinia / Province of Nuoro | 1 |
| Fedw Fawr | United Kingdom / Wales / Beaumaris | 1 |
| Masriudoms | Spain / Catalunya / Tarragona | 1 |
| Punta Giradili | Italy / Sardinia / Province of Nuoro | 1 |
| Civetta Group | Italy / Veneto / Province of Belluno | 1 |
| Lighthouse Crags | United Kingdom / Wales / Llandudno | 1 |
| Portrane | Ireland / County Dublin | 1 |
| Garron Point | United Kingdom / Northern Ireland / Ballymena | 1 |
| Crinkle Crag Area | United Kingdom / Wales / Conwy Principal Area / Llandudno | 1 |
| Ponta Garcia | Portugal / Faro / Vila do Bispo | 1 |
| Cow Dale | United Kingdom / England / Buxton | 1 |
| Harpur Hill Quarry | United Kingdom / England / Buxton | 1 |
| Barnburgh Cliff | United Kingdom / England / Doncaster | 1 |