Ordered by the number of climbs recorded. About sandstone.
| Crag | Location | # Climbs |
|---|---|---|
| Mont Simonet | France / Île-de-France / Seine-et-Marne | 1 |
| Avon Valley Sandstone | United Kingdom / England / Bristol | 1 |
| Maidens Bluff | United Kingdom / England / North Yorkshire / Whitby | 1 |
| Cloughton Wyke | United Kingdom / England / North Yorkshire / Scarborough | 1 |
| Boulby Cliffs | United Kingdom / England / Saltburn-by-the-Sea | 1 |
| Bronaugh Wall | United States / Kentucky / Lee County | 1 |
| Purgatory | United States / Kentucky / Lee County | 1 |
| Trwyn yr Wylfa Area | United Kingdom / Wales / Pwllheli | 1 |
| The Fortress | Australia / Victoria / Southern Grampians Shire | 1 |
| Spittal | United Kingdom / Berwick-upon-Tweed | 1 |
| Franchard Ermitage | France / Île-de-France / Seine-et-Marne | 1 |
| Yellow Bluff | United States / Alabama / Morgan County | 1 |
| Venus Baths | Australia / Victoria | 1 |
| Sunset Rock | United States / Tennessee / Hamilton County | 1 |
| Canche aux Merciers | France / Île-de-France / Seine-et-Marne | 1 |
| Roche aux Oiseaux | France / Île-de-France / Seine-et-Marne | 1 |
| Montrouget | France / Île-de-France / Essonne | 1 |
| Pierre le Sault | France / Île-de-France / Seine-et-Marne | 1 |
| Videlles | France / Île-de-France / Essonne | 1 |
| Long Boyau | France / Île-de-France / Seine-et-Marne | 1 |