Lake · Wales

Llyn y Fan Fawr

603 m1,978 ft

Area: 0.16 km²
Tonight: 4°CCloudy · Wind 18 km/h W

Llyn y Fan Fawr is a lake at 603 m above sea level in Wales, United Kingdom, 0.16 km² in area and 0.7 km long.

All facts

Surface elevation: 603 m
Length: 0.7 km
Shoreline: 1.9 km

Open the 3D view

Lake

Llyn y Fan Fawr in numbers

Shoreline from OpenStreetMap.

Shoreline: 1.9 km≈30 min to walk around

3D map

Llyn y Fan Fawr 3D map

Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 4 × 4 km

Surface

Vertical scale

Topographic map

Llyn y Fan Fawr terrain and contours

20 m contours from the Copernicus GLO-30 terrain model. Click two points on the map to draw your own cross-section.Tap two points on the map to draw your own cross-section.

Index contours every 100 mShowing west → east through the centre

Llyn y Fan Fawr elevation profile

West → east through the centre

Hover the profile to read elevation and distance.Tap or drag along the profile to read elevation and distance.

Weather

Llyn y Fan Fawr weather

Tonight · Cloudy · 4°C (39°F) · 0.4 mm · Wind 18 km/h W

Llyn y Fan Fawr forecast for about 603 m.

Tonight4°0.4 mm18 km/h W
Today4°12°33.8 mm41 km/h W
Sun5°8°0.9 mm41 km/h W
Mon6°12°16.6 mm34 km/h S
Tue6°9°4.9 mm34 km/h W
Wed8°11°0.9 mm25 km/h W
Thu8°10°0.3 mm13 km/h S
Fri8°11°7.4 mm20 km/h SE
Sat3°8°0.6 mm14 km/h NW
Sun1°5°1.5 mm21 km/h NW

Forecast data: MET Norway, CC BY 4.0; daily low and high, precipitation total and strongest wind from the hourly data, model run Oct 23, 23:19 UTC.

Camping & parking

Camping & parking near Llyn y Fan Fawr

Campsites, parking, trailheads and mountain huts mapped in OpenStreetMap around Llyn y Fan Fawr, nearest first, by straight-line distance. Check access, fees and permits locally.

Nearest parking
3.8 km NW
+2 more within 5.1 km
Directions Map
Nearest campsite
Tafarn-y-Garreg
4.8 km SSE · +2 more within 7.3 km
Directions Map
Nearest caravan site
Black Mountain Caravan and Camping Park
7.3 km NW
Directions Map

All mapped places 7

Place	Distance
Parking	3.8 km NW
Tafarn-y-GarregCampsite	4.8 km SSE
Tafarn-y-GarregParking	4.8 km SSE
Parking	5.1 km E
Brecon Beacons Camping & Caravan ParkCampsite	5.3 km SSE
Cae Glas CampingCampsite	7.3 km S
Black Mountain Caravan and Camping ParkCaravan site	7.3 km NW

Slope

Share of the 4 × 4 km view by steepness, from the 30 m model.

Mostly gentle: 84% of the view is under 15°.

Gentle, 0–15°

84.1%

Moderate, 15–30°

12.2%

Steep, 30–45°

3.2%

Cliffs, 45° and over

0.5%

Steeper than 30°: 3.7% of the 16 km² view
Relief in view: 478 m low point 322 m

Land cover

ESA WorldCover 10 m classification of the same area.

Grassland 98.2%Water 1.0%Trees 0.8%

Snow & ice means glaciers and year-round snow (a yearly average), not today’s snow cover.

Nearby summits

Named peaks within 2 km of Llyn y Fan Fawr.

Summit list 4

1Fan Brycheiniog802 m 0.6 km W
2Fan Hir761 m 0.7 km S
3Fan Foel781 m 1.2 km WNW
4Picws Du749 m 1.9 km W

Wildlife

Wildlife seen nearby

Sightings of the most-seen species on iNaturalist (research grade) within 2 km; 41 species recorded in all.

Sightings per species 6

Northern Wheatear3
Meadow Pipit3
European Common Frog3
Small Emperor Moth3
Green spleenwort3
Black crowberry3

Where it sits

Where Llyn y Fan Fawr sits

Nearby

Nearby places

More 1

Llyn FawrLake20 km SSE

Downloads

Llyn y Fan Fawr downloads: topographic map, heightmap, STL 3D model and DEM

Free files made in your browser from this page's terrain data. No sign-up; credit the sources below.

Print & wall

JPGLlyn y Fan Fawr satellite image (JPEG)Sentinel-2 true-colour image of the same area, taken 2026-07-15.

3D printing & 3D apps

GIS & GPS

</>Embed this mapPaste this into your site to show the interactive 3D terrain, with a credit link back here.

<iframe src="https://topolu.com/embed/llyn-y-fan-fawr" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Llyn y Fan Fawr"></iframe>
<p><a href="https://topolu.com/llyn-y-fan-fawr" rel="nofollow">Topolu</a></p>

Free to use with credit: see the data sources

Sources

Data sources

Terrain: Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
Imagery: Contains modified Copernicus Sentinel data 2026 (scene 2026-07-15)
Land cover: © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
Facts: Wikidata (CC0)
Wildlife: iNaturalist community observations, counts only
Forecast: Weather forecast from MET Norway (CC BY 4.0)
Sources: Wikidata · Wikipedia

Llyn y Fan Fawr

West → east through the centre

Nearest parking

Nearest campsite

Nearest caravan site