| Category | Depressions |
| Continent | Brucrumus |
| Region | Grashakh |
| Created | 21 Temporal 1020 |
| Map | Thingrorn |
Named after the green dragon Mathongrarg, this wide hole was created when the Ink Sphere landed here in 1020 . Over the next few days, the massive object slowly sank, disintegrating the rock with its descent. In its wake it left a 1,100' diameter shaft.