| Country | United Kingdom 🇬🇧 |
| Rock type | Rhyolite |
| Climbs | |
| Trad climbs | 3 (VS to E2) |
In November 2018 the crag suffered a substantial rockfall which affected a number of classic routes including North Crag Eliminate and Overhanging Bastion. [1]
[1] Part of Lake District crag Castle Rock collapses, BBC News November 2018 https://www.bbc.co.uk/news/uk-england-cumbria-46350937
[2] https://www.thebmc.co.uk/castle-rock-lake-district-triermain-fallen-down
3 recorded climbs.
| Year | Climb | Grade | Climber | Style | Date | |
|---|---|---|---|---|---|---|
| 1937 | Overhanging Bastion (pre-rockfall) | VS | Jim Birkett | Alternate Leads | onsight | 1st Apr 1937 | |
| First ascent. | ||||||
|
A breakthrough route for it's time, both in terms of the difficulty and terrain. |
||||||
| 1938 | ||||||
| 1939–1952 | ||||||
| 1953 | ||||||
| 1954 | Thirlmere Eliminate | E2 | Paul Ross | Alternate Leads | 1954 | |
| First ascent. With Peter Greenwood. | ||||||
| Thirlmere Eliminate | E2 | Peter Greenwood | Alternate Leads | 1954 | ||
| First ascent. With Paul Ross. | ||||||
| Climb | Grade | # Recorded Ascents | Ascents Recorded Between |
|---|---|---|---|
| Thirlmere Eliminate | E2 | 2 | 1st January 1954 – 1st January 1955 |
| North Crag Eliminate | E1 | 0 | |
| Overhanging Bastion (pre-rockfall) | VS | 1 | 1st April 1937 |