The Nowendoc River is on the Northern Tablelands

Northern Tablelands, New South Wales

The Northern Tablelands, also known as the New England Tableland, is a plateau and a region of the Great Dividing Range in northern New South Wales, Australia. It includes the New England Range, the narrow highlands area of the New England region, stretching from the Moonbi Range in the south to...

 of New South Wales

New South Wales

New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

, Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. The headwaters of the river rise about four kilometres east by north of The Black Sugarloaf on the eastern slopes of the Great Dividing Range

Great Dividing Range

The Great Dividing Range, or the Eastern Highlands, is Australia's most substantial mountain range and the third longest in the world. The range stretches more than 3,500 km from Dauan Island off the northeastern tip of Queensland, running the entire length of the eastern coastline through...

 south of Walcha

Walcha, New South Wales

Walcha is a parish and town at the south-eastern edge of the Northern Tablelands, New South Wales, Australia.The town serves as the seat of Walcha Shire. Walcha is located 425 kilometres by road from Sydney at the intersection of the Oxley Highway and Thunderbolts Way...

. It flows generally south-eastwards passing near the village of Nowendoc

Nowendoc, New South Wales

Nowendoc is a parish and village on the Northern Tablelands, New South Wales, Australia. The town is located 360 km north of the state capital, Sydney, 66 km south of Walcha and is in the Walcha Shire Local Government Area...

 before spilling over the Nowendoc Falls and continuing for a total of about 95 km before its confluence with the Manning River

Manning River

The Manning River is a river in the Mid North Coast of New South Wales, Australia that flows through the Manning Valley. It is one of Australia's few large river systems not to be dammed for water supply purposes anywhere along its catchment...

 west of Knorrit Flat.

The main tributaries of the Nowendoc River are the Cooplacurripa River

Cooplacurripa River

The Cooplacurripa River is a river, approximately 75 kilometres long, on the Northern Tablelands of New South Wales, Australia.It rises at an approximate elevation of 1,260 metres on the slopes of the Great Dividing Range about 3.5 kilometres north-east of Riamukka...

 and Rowleys River

Rowleys River

The Rowleys River is a river which is approximately 75 kilometres long, on the Northern Tablelands of New South Wales, Australia. It rises on the slopes of the Great Dividing Range ap proximately six kilometres south of Yarrowitch and flows southwards along the western boundary of the...

. Previously the Nowendoc River was known as Peel Creek.

Almost the entire length of the Nowendoc River is within the boundaries of Walcha Local Government Area

Local Government Area

A local government area is an administrative division of a country that a local government is responsible for. The size of an LGA varies by country but it is generally a subdivision of a state, province, division, or territory....

. Most of the country along the Nowendoc River is a grazing area used for rearing beef cattle