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Wales

Mach Loop

Floor25 m82 ft
Depth
304 m
Rim
401 m
Length
11.7 km
Tonight
5°CCloudy · Wind 21 km/h W

Mach Loop is up to 304 m deep: the rim reaches 401 m and the floor 25 m, along 11.7 km.

All facts
Floor
25 m
Open the 3D view
3D map

Mach Loop 3D map

Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 12 × 12 km

Surface
Vertical scale
Topographic map

Mach Loop topographic map

50 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 250 mShowing west → east through the centre

Mach Loop 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.
Downloads

Mach Loop 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/mach-loop" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Mach Loop"></iframe> <p><a href="https://topolu.com/mach-loop" rel="nofollow">Topolu</a></p>

Free to use with credit: see the data sources

Depth

Depth of Mach Loop

Up to 304 m deep (typically 246 m) along the 11.7 km in view.

0100200300400500304 mrimfloor0511.7 km

Rim = the lower side's highest point within 6 km. Centreline follows the river (no mapped valley line).

Weather

Mach Loop weather

Tonight · Cloudy · 5°C (41°F) · 0.4 mm · Wind 21 km/h W

Mach Loop forecast for about 401 m.

  • Tonight5°0.4 mm21 km/h W
  • Today6°12°35.6 mm50 km/h W
  • Sun7°9°4.4 mm44 km/h W
  • Mon7°13°17.3 mm36 km/h SW
  • Tue8°10°7.7 mm33 km/h W
  • Wed9°11°3.0 mm27 km/h W
  • Thu8°11°0.3 mm11 km/h SE
  • Fri7°11°6.5 mm17 km/h SE
  • Sat4°9°0.8 mm12 km/h W
  • Sun3°5°2.9 mm20 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 Mach Loop

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

All mapped places 5
PlaceDistance
Parking2.1 km WSW
Parking3.2 km SW
Parking4.3 km WNW
Dyfi Adventure CampsiteCampsite5.1 km ESE
Caravan site6.0 km SW
Slope

Slope

Share of the 12 × 12 km view by steepness, from the 30 m model.

Mixed terrain: gentle slopes, steep faces and everything between.

Gentle, 0–15°
47.2%
Moderate, 15–30°
44.6%
Steep, 30–45°
7.9%
Cliffs, 45° and over
0.3%
Steeper than 30°
8.2% of the 144 km² view
Relief in view
781 m low point 3 m
Land cover

Land cover

ESA WorldCover 10 m classification of the same area.

Trees 52.9%Grassland 45.9%Water 0.6%Built-up 0.5%

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 6 km; 790 species recorded in all.

Sightings per species 6
  • Germander Speedwell20
  • Hogweed20
  • Maidenhair spleenwort19
  • Common selfheal18
  • Cuckooflower16
  • Himalayan balsam15
Where it sits

Where Mach Loop sits

Region
Wales60United Kingdom371Europe2,143
Nearby

Nearby places

More 1
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