Portland River
| Portland River | ||
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| Data | ||
| location | Western Australia , Australia | |
| River system | Fortescue River | |
| Drain over | Fortescue River → Indian Ocean | |
| source | Mount Leal (Chichester Range) 21 ° 27 ′ 40 ″ S , 117 ° 13 ′ 38 ″ E |
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| Source height | 341 m | |
| muzzle |
Fortescue River west of Gregory Gorge Coordinates: 21 ° 28 ′ 59 " S , 116 ° 49 ′ 44" E 21 ° 28 ′ 59 " S , 116 ° 49 ′ 44" E |
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| Mouth height | 213 m | |
| Height difference | 128 m | |
| Bottom slope | 2.5 ‰ | |
| length | 51.5 km | |
| Right tributaries | Withnell Creek, Coondinnar Creek | |
| Flowing lakes | Thirdiwandy pool | |
The Portland River is a river in the Pilbara region in the northwest of the Australian state of Western Australia .
geography
The river has its source on the western slopes of Mount Leal in the western part of the Chichester Range in the southwest of Millstream Chichester National Park . It flows westward and joins the Fortescue River west of Gregory Gorge .
Tributaries with mouth heights
- Withnell Creek - 271 m
- Coondinnar Creek - 257 m
Flowing lakes
- Thirdiwandy Pool - 255 m