geo.wikisort.org - River

The Arrowsmith River lies within the Mid West region of Western Australia.

Arrowsmith River
Location
Country	Australia
Physical characteristics
Source
• location	Arrino
• elevation	250 metres (820 ft)[1]
Mouth
• location	Arrowsmith Lake
Length	85 kilometres (53 mi)[2]
Basin size	1,833 square kilometres (708 sq mi)[3]
Discharge
• average	5,212 ML/a (5.833 cu ft/s)[4]

The explorer George Grey found the river on 11 April 1839, on his second expedition along the west coast. He named it after the distinguished English cartographer John Arrowsmith.[5]

The river commences just south of Arrino and north-west of Three Springs near the Midlands Road and flows in a westerly direction for a length of 85 kilometres (53 mi) to the coast and terminates in Arrowsmith Lake, 9 kilometres (6 mi) inland from Cliff Head.

The river drops a total of 219 metres (719 ft) in elevation over the course of its length.

Flooding in surrounding areas occurred in 1932 following a torrential downpour that caused the river and surrounding creeks to rise and flood a few hours later.[6]

The salinity levels in the river are often higher than 1000 mg/L due to brackish run-off water, but the potential bore yields of the catchment are quite high.[7]

References

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