Irwin River | |
---|---|
Location | |
Country | Australia |
Physical characteristics | |
Source | |
• location | Near Pindar |
• elevation | 326 metres (1,070 ft) [1] |
Mouth | |
• location | Arurine Bay, between Port Denison and Dongara |
• elevation | Sea level |
Length | 140 kilometres (87 mi) [2] |
Basin size | 6,071 square kilometres (2,344 sq mi) [3] |
The Irwin River is a river in the Mid West region of Western Australia. It was named on 9 April 1839 by the explorer George Grey, while on his second disastrous exploration expedition along the Western Australian coast, after his friend Major Frederick Irwin, the Commandant of the Swan River settlement. [4]
The headwaters of the Irwin are located below Canna near Pindar. The river flows west until discharging into Arurine Bay near Dongara.
The river passes through the Coalseam Conservation Park to the north of Mingenew which has a mixed geology of siltstones, claystones and sandstones that form stripes in the cliff faces formed by the river. [5]
The river has four tributaries: Lockier River, Sand Plain Creek, Nangetty Creek and Mullewa Creek.
The river occasionally floods as it did in 1945 following a severe storm that swept over the area. The river broke its banks and caused extensive damage including the loss of 450 sheep that were swept away from a farm that straddled the river. [6]
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The Gascoyne River is a river in the Gascoyne region of Western Australia. At 865 kilometres (537 mi), it is the longest river in Western Australia.
The Greenough River is a river in the Mid West region of Western Australia.
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Coalseam Conservation Park is a conservation park in the Shire of Mingenew, in the Wheatbelt region of Western Australia, approximately 115 kilometres (71 mi) inland from Geraldton. The park is an important refuge for the threatened fauna and flora of the Wheatbelt region. It is renowned for its spectacular spring wildflowers. The park is also the site of the discovery of Western Australia's first coal deposits in 1846 and a rare example of coal being visible on the surface.
29°15′35″S114°55′7″E / 29.25972°S 114.91861°E