|⁃ location||south of Double Peak|
|⁃ elevation||463 m (1,519 ft)|
|Mouth||confluence with the Gascoyne River|
|near Landor Station homestead|
|294 m (965 ft)|
|Length||127 km (79 mi)|
|River system||Gascoyne River catchment|
The headwaters of the river rise south of Double Peak and flows westwards, joined by two minor tributaries; Coondoondoo Creek and Pink Hills Creek. The river forms its confluence with the Gascoyne River near the Police Station Woolshed. The Thomas flows through the Murrumburra Pool on its way to the Gascoyne. The river descends 169 metres (554 ft) over its 127-kilometre (79 mi) course.
- "Map of Thomas River, WA". Bonzle Digital Atlas of Australia. 2008. Retrieved 6 February 2009.
- Year Book Australia, 1910. Australian Bureau of Statistics. 2009.
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