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Also on the map ofSnowdonia‹ Cambrian Mountains

Lake · Wales

Llyn Geirionydd

187 m614 ft
Area
0.25 km²
Tonight
6°CCloudy · Wind 19 km/h W

Llyn Geirionydd is a lake at 187 m above sea level in Wales, United Kingdom, 0.25 km² in area and 1.3 km long.

All facts
Surface elevation
187 m
Length
1.3 km
Shoreline
3.1 km
Open the 3D view
Lake

Llyn Geirionydd in numbers

Shoreline from OpenStreetMap.

1.3 km longest500 mN ↑
Shoreline
3.1 km≈45 min to walk around
3D map

Llyn Geirionydd 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 Geirionydd 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 Geirionydd 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 Geirionydd weather

Tonight · Cloudy · 6°C (43°F) · 0.3 mm · Wind 19 km/h W

Llyn Geirionydd forecast for about 187 m.

  • Tonight6°0.3 mm19 km/h W
  • Today7°13°33.1 mm48 km/h W
  • Sun7°9°3.3 mm43 km/h W
  • Mon8°14°22.1 mm41 km/h SW
  • Tue8°11°10.1 mm41 km/h SW
  • Wed10°12°0.9 mm23 km/h W
  • Thu9°11°0.7 mm14 km/h S
  • Fri9°12°3.1 mm14 km/h S
  • Sat6°10°2.1 mm14 km/h NW
  • Sun5°6°11.1 mm15 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 24, 01:17 UTC.

Camping & parking

Camping & parking near Llyn Geirionydd

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

  • Nearest parking

    0.4 km S

    +2 more within 0.5 km

    DirectionsMap

  • Nearest campsite

    Cornel Scout Campsite

    1.8 km WSW · +2 more within 4.1 km

    DirectionsMap

  • Nearest caravan site

    Gwydyr View Lodge Park

    2.8 km NE · +2 more within 2.8 km

    DirectionsMap

  • Nearest hut

    Gwydyr Mountain Club Hut

    5.0 km SSW · +2 more within 8.0 km

    DirectionsMap
All mapped places 12
PlaceDistance
Parking0.4 km S
Parking0.5 km S
Parking0.5 km S
Cornel Scout CampsiteCampsite1.8 km WSW
Gwydyr View Lodge ParkCaravan site2.8 km NE
Glyn Farm CaravansCaravan site2.8 km NE
Caravan site2.8 km NE
Campsite2.9 km NE
Campsite4.1 km E
Gwydyr Mountain Club HutHut5.0 km SSW
HelygHut7.3 km W
DulynHut8.0 km NW
Slope

Slope

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

Mostly gentle: 65% of the view is under 15°.

Gentle, 0–15°
65.2%
Moderate, 15–30°
28.3%
Steep, 30–45°
6.2%
Cliffs, 45° and over
0.3%
Steeper than 30°
6.5% of the 16 km² view
Relief in view
500 m low point 3 m
Land cover

Land cover

ESA WorldCover 10 m classification of the same area.

Trees 58.2%Grassland 37.8%Water 3.9%

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

Wildlife

Wildlife seen nearby

Sightings of the most-seen species on iNaturalist (research grade) within 2 km; 226 species recorded in all.

Sightings per species 6
  • Round-leaved sundew11
  • Fly Agaric9
  • European Common Frog6
  • Common Butterwort6
  • Eurasian Silver-bordered Fritillary5
  • Oak Eggar5
Where it sits

Where Llyn Geirionydd sits

Range
Cambrian Mountains19Snowdonia15
Region
Wales60United Kingdom371Europe2,143
Nearby

Nearby places

More 1
More in the Snowdonia 6
See all 15 in the Snowdonia →
Downloads

Llyn Geirionydd 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
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-geirionydd" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Llyn Geirionydd"></iframe> <p><a href="https://topolu.com/llyn-geirionydd" 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)
Camping & parking, Geometry
© OpenStreetMap contributors (ODbL)
Summits
© OpenStreetMap contributors, via Overture Maps Foundation (ODbL)
Wildlife
iNaturalist community observations, counts only
Forecast
Weather forecast from MET Norway (CC BY 4.0)
Sources
Wikidata · Wikipedia