Jarðhús Gumma 5b+
Byrjar sitjandi
| Crag | Grettistak |
| Sector | Innri-Stórusteinar |
| Stone | 6 |
| Type | boulder |
| First ascent | |
| Markings |
Byrjar sitjandi
| Crag | Grettistak |
| Sector | Innri-Stórusteinar |
| Stone | 6 |
| Type | boulder |
| First ascent | |
| Markings |
