The upper section of the valley, east of Llyn Ogwen, lies in the county borough of Conwy.
The Ogwen Valley, as a result of being bordered on all sides by mountainous regions, is home to many hill walkers, climbers, and campers.
This level of recreational activity can at times result in people getting into trouble on the hills, and to address this problem the Ogwen Valley Mountain Rescue Organisation was set up.
It also includes smaller villages such as Tregarth, Mynydd Llandygai Rachub, Sling, Caerneddi, Braichmelyn, Gerlan, Henbarc and Llanllechid.
“House of the Dragon” also had scenes shot here from the head of the valley near Llyn Idwal and Nant Ffrancon.