Moore River is a river in the Wheatbelt region of Western Australia. The headwaters of the Moore River lie in the Perenjori, Carnamah and Dalwallinu Shires. The river then drains southwards through Moora, flows westerly before joining with the Moore River East near Mogumber, then flows in a westerly direction over the Edengerie Cascade, through th…Moore River is a river in the Wheatbelt region of Western Australia. The headwaters of the Moore River lie in the Perenjori, Carnamah and Dalwallinu Shires. The river then drains southwards through Moora, flows westerly before joining with the Moore River East near Mogumber, then flows in a westerly direction over the Edengerie Cascade, through the northern edge of the Moore River Nature Reserve, then through the Gingin Scarp, discharging into the Indian Ocean at Guilderton.