Ordered by the number of climbs recorded. About rhyolite.
| Crag | Location | # Climbs |
|---|---|---|
| Burnt Crag | United Kingdom / England / Broughton-in-Furness | 1 |
| Great Blake Rigg | United Kingdom / England / Broughton-in-Furness | 1 |
| Eagle Crag | United Kingdom / England / Cumberland / Cockermouth | 1 |
| Swirl Crags | United Kingdom / England / Keswick | 1 |
| Gearr Aonach | United Kingdom / Scotland / Ballachulish | 1 |
| Iving Crag | United Kingdom / England / Westmorland and Furness / Kendal | 1 |
| Clogwyn Bochlwyd | United Kingdom / Wales / Bangor | 1 |
| Glyder Fawr | United Kingdom / Wales / Caernarfon | 1 |
| Gable Crag | United Kingdom / England / Cumberland / Seascale | 1 |
| Kern Knotts | United Kingdom / England / Cumberland / Seascale | 1 |
| Craig Braich Ty Du | United Kingdom / Wales / Bangor | 1 |
| Craig Lloer | United Kingdom / Wales / Bangor | 1 |
| Buckbarrow | United Kingdom / England / Cumberland / Seascale | 1 |
| Dinas Bach | United Kingdom / Wales / Caernarfon | 1 |
| Clogwyn Gafr | United Kingdom / Wales / Caernarfon | 1 |
| Clogwyn Blaen Coed | United Kingdom / Wales / Caernarfon | 1 |
| Heron Crag | United Kingdom / England / Cumberland / Holmrook | 1 |
| Long Band Crag | United Kingdom / England / Keswick | 1 |
| Raven Crag | United Kingdom / England / Keswick | 1 |
| Clogwyn Llo | United Kingdom / Wales / Caernarfon | 1 |