Reservoirs & lochs · North Wales
Llyn Stwlan
Llyn Stwlan — reservoir lake in Gwynedd, Wales which produces hydroelectric power.

Wikimedia Commons contributors — see linked file page for photographer and licence licence
Plan your visit
- Typical visit
- 1 h–2.5 h
- Nearest railway station
- Tanygrisiau · 2.0 km
- Free entry
- Dog-friendly
About
Llyn Stwlan is a reservoir in North Wales, supplying water and increasingly opened up for sailing, walking and birdwatching. Operated by First Hydro Company. It sits within the Dwyfor Meirionnydd parliamentary constituency. The nearest railway station is Tanygrisiau, about 2.0 km away. Postcode area LL41.
Photo gallery
Place summary
Llyn Stwlan is a reservoir located in Ffestiniog, North Wales. Operated by First Hydro Company, it serves as a significant water supply source for the region. The reservoir contributes to the local hydroelectric power generation efforts.
AI-generated from the structured facts on this page (operator, designation, listing, era). Not a substitute for visiting.
- Coordinates
- 52.9807, -3.9907
- District
- Gwynedd
- Parish
- Ffestiniog
- Postcode
- LL41 3TP
- Parliamentary constituency
- Dwyfor Meirionnydd
- Nearest railway station
- Tanygrisiau — 2 km
Sources
- wikidata: Q20599144 (CC0)
- commons: Llyn Stwlan uwch ben Tanygrisiau, Blaenau Ffestiniog - hydroelectric reservoir which supplies water to Llyn Tanygrisiau lake 32.jpg (CC BY-SA 4.0)
Other places nearby
Loading nearby places…
Nearby
Mountains & hills · North Wales
Craig Stwlan
Craig Stwlan — a mountain in wales-north, United Kingdom, 568 m.
📷 3Mountains & hills · North Wales
Craigysgafn
Craigysgafn — Named summit at 689 m.
📷 3Natural landmarks · North Wales
Moelwyn Mawr
Moelwyn Mawr — mountain (770m) in Gwynedd.
Mountains & hills · North Wales
Moelwyn Mawr North Ridge Top
Moelwyn Mawr North Ridge Top — a mountain in wales-north, United Kingdom, 640 m.
📷 3Mountains & hills · North Wales
Moelwyn Mawr
Moelwyn Mawr — Named summit at 770 m.
📷 3Mountains & hills · North Wales
Moelwyn Bach
Moelwyn Bach — Named summit at 710 m.
More places run by First Hydro Company
📷 3Reservoirs & lochs · North Wales
Llyn Peris
Llyn Peris — reservoir in Gwynedd, Wales.
📷 3Reservoirs & lochs · North Wales
Llyn Tanygrisiau
Llyn Tanygrisiau — reservoir lake in Gwynedd, Wales.
📷 3Reservoirs & lochs · North Wales
Marchlyn Mawr
Marchlyn Mawr — reservoir lake in Gwynedd, Wales.
More places in this region
Flagship📷 4Reservoirs & lochs · North Wales
Llyn Crafnant
Llyn Crafnant — lake in Conwy County Borough, Wales.
Flagship📷 3Reservoirs & lochs · North Wales
Llyn Trawsfynydd
Llyn Trawsfynydd — reservoir lake in Gwynedd, Wales.
📷 3Reservoirs & lochs · North Wales
Alwen Reservoir
Alwen Reservoir — reservoir in the United Kingdom.
📷 3Reservoirs & lochs · North Wales
Carr Mill Dam
Carr Mill Dam is a reservoir in the United Kingdom.
Frequently asked questions
- Where is Llyn Stwlan?
- Llyn Stwlan is in North Wales, United Kingdom (postcode LL41 3TP), in the parish of Ffestiniog.
- Who runs Llyn Stwlan?
- Llyn Stwlan is operated by First Hydro Company.
- How do I get to Llyn Stwlan?
- The nearest railway station is Tanygrisiau, about 2.0 km away. Drivers can navigate to postcode LL41 3TP.