| Grade | 3 |
| Type | Boulder problem |
| Crag | The Y-Boulder |
| Country | United Kingdom 🇬🇧 |
| Rock type | Rhyolite |
| History | |
| First ascent | Aleister Crowley (18th Apr 1898) |
| Recorded repeats | 0 |
| Grade | 3 |
| Type | Boulder problem |
| Crag | The Y-Boulder |
| Country | United Kingdom 🇬🇧 |
| Rock type | Rhyolite |
| History | |
| First ascent | Aleister Crowley (18th Apr 1898) |
| Recorded repeats | 0 |
On 18 April 1898, Crowley and Legros recorded 22 climbs on the Y Boulder in Mosedale, including a topo. These are some of the earliest recorded boulder problems and the topo could perhaps be the first bouldering guide.
[1] https://web.archive.org/web/20190217031248/http://www128.pair.com/r3d4k7/Bouldering_History1.1a.html
1 successful ascent recorded.
| Climber | Style | Ascent Date | Suggested Grade | |
|---|---|---|---|---|
| Aleister Crowley | Boulder | 18th Apr 1898 | ||
| First ascent. | ||||
|
One of 22 recorded problems. References[1] https://web.archive.org/web/20190217031248/http://www128.pair.com/r3d4k7/Bouldering_History1.1a.html |
||||