Hills of Britain and Ireland
OS Map of Mynydd Nodol
Height: 539m / 1768ft • Prominence: 168m / 551ft • Summit : rock by cairn • Trip reports (hill-bagging)
![Llyn Celyn [06]](https://live.staticflickr.com/65535/51657402329_883880dda5.jpg)
Llyn Celyn [06]
21-Oct-21 • Rynglieder • flickr
wales llyncelyn reservoir lake tower spillway 51657402329
![Llyn Celyn [02]](https://live.staticflickr.com/65535/51629259642_f358ee41ef.jpg)
Llyn Celyn [02]
Reservoir & valve tower
21-Oct-21 • Rynglieder • flickr
wales llyncelyn lake reservoir tower mountain 51629259642



No Diving
Water Straining Tower & Overflow at Llyn Celyn
27-Jan-20 • keithbellis • flickr
49467655756

OS Map
This is OS mapping. In some areas, OpenStreetMap shows more footpaths
Spatial NI has online OSNI mapping. Click "Basemap Gallery" (4 squares icon at the top).
Now would be a good time for a cup of tea.






GPX Editor
Record map clicks
Reload map
Photos
Please tag your photos and upload them to the British and Irish Mountains group on Flickr
The other photos have been geo-tagged as on or around the summit. For less busy mountains, it can be a little hit and miss.
![Llyn Celyn [06]](https://live.staticflickr.com/65535/51657402329_883880dda5.jpg)
Llyn Celyn [06]
21-Oct-21 • Rynglieder • flickr
wales llyncelyn reservoir lake tower spillway 51657402329
![Llyn Celyn [02]](https://live.staticflickr.com/65535/51629259642_f358ee41ef.jpg)
Llyn Celyn [02]
Reservoir & valve tower
21-Oct-21 • Rynglieder • flickr
wales llyncelyn lake reservoir tower mountain 51629259642



No Diving
Water Straining Tower & Overflow at Llyn Celyn
27-Jan-20 • keithbellis • flickr
49467655756


Llyn Ceyln
Llyn Ceylin reservoir in NOrthern Wales
26-Feb-19 • Elliot Hyndman • flickr
snowon wales dji djimavic mavicair mavic aerial droneography drone nature landscape lake reservoir snowdonia 46316508665

Oposite Llyn Ceyln
The view opposite Llyn Ceyln.
26-Feb-19 • Elliot Hyndman • flickr
snowon wales dji djimavic mavicair mavic aerial droneography drone nature landscape lake reservoir snowdonia 40265911873
Videos
Returning after 25 years to a long abandoned mine on the Arenig outlier of Mynydd Nodol, where I nearly lost my life in a rockfall ...
A 10k mountain walk in the Arenigs.
Notes
- Data: Database of British and Irish Hills v18.2
- Maps: We use OS mapping for England, Scotland, Wales, and the Isle of Man. Sadly, Channel Islands, Northern (OSNI) and Southern Ireland (OSI) mapping isn't available online, so we use Openstreetmap.