The River Conwy is a river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in north

North Wales

North Wales is the northernmost unofficial region of Wales. It is bordered to the south by the counties of Ceredigion and Powys in Mid Wales and to the east by the counties of Shropshire in the West Midlands and Cheshire in North West England...

 Wales

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

. From its source to its discharge in Conwy Bay

Conwy Bay

Conwy Bay is an inlet of the Irish Sea, defined by the east coast of Anglesey and the north coast of Wales. Puffin Island and the Great Orme mark the limits of the bay....

 it is a little over 27 miles (43.5 km) long. "Conwy" is sometimes Anglicized as "Conway."

It rises on the Migneint

Migneint

The Migneint is a large expanse of moorland in central Snowdonia, North Wales. It is part of the Migneint-Arenig-Dduallt Special Area of Conservation, along with the mountains Arenig Fawr, Arenig Fach and Dduallt, covering a range of nearly 200 km²...

 moor where a number of small stream

Stream

A stream is a body of water with a current, confined within a bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as a branch, brook, beck, burn, creek, "crick", gill , kill, lick, rill, river, syke, bayou, rivulet, streamage, wash, run or...

s flow into Llyn Conwy

Llyn Conwy

Llyn Conwy is a lake in the county of Conwy in central north Wales. It is the source of the River Conwy which, on flowing south out of the lake, swings round to then generally flow in a northerly direction for a distance of some to its discharge in Conwy Bay...

, then flows in a generally northern direction, being joined by the tributaries of the rivers Machno

River Machno

The River Machno is a river in Snowdonia, North Wales. It is the first major tributary of the River Conwy, which it joins south of Betws-y-coed, just past the impressive Penmachno Falls....

 and Lledr

River Lledr

The River Lledr is a river in North Wales and the second major tributary of the River Conwy.The Lledr has its source on the eastern slopes of Ysgafell Wen, which lies between Moel Siabod and Cnicht...

 before reaching Betws-y-Coed

Betws-y-Coed

Betws-y-Coed is a village and community in the Conwy valley in Conwy County Borough, Wales. It has a population of 534. The name Betws or Bettws is generally thought to be derived from the Anglo-Saxon Old English 'bed-hus' - i.e. a bead-house - a house of prayer, or oratory...

, where it is also joined by the River Llugwy.