| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fossá í Þjórsárdal | Lake Jasybay | 43,000 | 64.0847222200 | -19.8716666700 | Map | ||||||
| Austari-Jökulsá |  | Héraðsvötn | 65.3722222200 | -19.1083333300 | Map | ||||||
| Norðurá (Héraðsvötn) | Héraðsvötn | 65.4333333300 | -19.1833333300 | Map | |||||||
| Vestari-Jökulsá | Héraðsvötn | 65.3722222200 | -19.1083333300 | Map | |||||||
| Reykjadalsá (Hvítá) |  | 210,000,000 | Hofsee | 38,000 | 64.6500000000 | -21.5000000000 | Map |