| Grade | 7C |
| Type | Boulder problem |
| Crag | Drei Zinnen |
| Country | France 🇫🇷 |
| Rock type | Sandstone |
| History | |
| First ascent | Jacky Godoffe (1998) |
| Recorded repeats | 0 |
| Grade | 7C |
| Type | Boulder problem |
| Crag | Drei Zinnen |
| Country | France 🇫🇷 |
| Rock type | Sandstone |
| History | |
| First ascent | Jacky Godoffe (1998) |
| Recorded repeats | 0 |
Named after its brain-like appearance.
Nicknamed Le Mur du Son or The Wall of Sound while it was a project due to its proximity to the nearby motorway.
1 successful ascent recorded.
| Climber | Style | Ascent Date | Suggested Grade | |
|---|---|---|---|---|
| Jacky Godoffe | Boulder | worked | 1998 | ||
| First ascent. | ||||