Numeralla River

Numeralla
Umaralla River
River
Name origin: Aboriginal: valley of plenty
Country	Australia
State	New South Wales
Regions	South Eastern Highlands (IBRA), Monaro
Municipality	Snowy Monaro Regional Council
Part of	Murrumbidgee catchment, Murray–Darling basin
Tributaries
- left	Kybeyan River, Big Badja River
- right	Rock Flat Creek
Source	Kybeyan Range
- location	east of Nimmitabel
- elevation	1,070 m (3,510 ft)
- coordinates	36°30′27″S 149°25′20″E / 36.50750°S 149.42222°E / -36.50750; 149.42222
Mouth	Murrumbidgee River
- location	north of Cooma
- elevation	706 m (2,316 ft)
- coordinates	36°3′56″S 149°9′1″E / 36.06556°S 149.15028°E / -36.06556; 149.15028Coordinates: 36°3′56″S 149°9′1″E / 36.06556°S 149.15028°E / -36.06556; 149.15028
Length	94 km (58 mi)
Location of the mouth of the Numeralla River in New South Wales

The Numeralla River, a perennial river that is part of the Murrumbidgee catchment within the Murray–Darling basin, is located in the Monaro region of New South Wales, Australia.

The name of the river is derived from the Aboriginal word meaning "valley of plenty."

The river rises on the northern slopes of the Great Dividing Range, about 12 kilometres (7.5 mi) east of the village of Nimmitabel, and flows generally north and west, joined by eight tributaries including the Kybeyan and Big Badja rivers before reaching its confluence with the Murrumbidgee River, south of Bredbo and about 18 kilometres (11 mi) north of Cooma; descending 367 metres (1,204 ft) over its 93-kilometre (58 mi) course.

The river is a diverse ecosystem rich with many different animal species such as the uncommonly seen Wanderer's Kingfisher and the Kiora frog. Its native freshwater fish fauna, however, has unfortunately been entirely replaced by introduced trout species, now replaced by the introduced European carp species; a common situation in south-east Australia.

Alluvial gold was discovered in and along the river in 1858, with the diggings worked until 1868.