OpenFell
Scotland

Beinn Mhor

GrahamMarilynHuMPSimm

3 classifications here — Marilyn, HuMP and Simm — belong to lists OpenFell holds only part of, so they have no list page. See how far the coverage goes.

Data compiled by Ryan — sources and method

Beinn Mhor, 621 m, Na h-Eileanan Siar [Western Isles]
Beinn Mhor, 621 m, Na h-Eileanan Siar [Western Isles]. Photo by Richard Webb, CC BY-SA 2.0 · Wikimedia Commons
Height
620.5 m · 2,036 ft
Prominence
620.5 m
Grid reference
NF 80857 31089
Coordinates
57.25875, -7.29504
County / area
Na h-Eileanan Siar [Western Isles]
OS Landranger
22
OS Explorer
453S
Summit feature
rock 5m NW of trig pillar

About Beinn Mhor

Beinn Mhòr is the highest point on South Uist in the Outer Hebrides, at 620 m, and is the most westerly mountain in both Scotland and Great Britain.

The name means big mountain in Gaelic, though the mountain's correct Gaelic name is Gèideabhal. It is listed as a Graham and a Marilyn.

Background written from facts in the Wikipedia article on Beinn Mhòr (South Uist) (CC BY-SA 4.0). Heights, prominence and grid references come from the Database of British & Irish Hills, not from Wikipedia.

Access rights here

Yes Right to roam: Statutory right of responsible access to most land and inland water.

Yes Wild camping: Wild camping is broadly lawful under the 2003 Act.

General position for Scotland — local byelaws, seasonal restrictions and closures can override it. Full details: access rights in Scotland · check another location.

Daylight at this summit today

Sunrise
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Sunset
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Daylight
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Civil twilight ends
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Computed astronomically for 57.259, -7.295. Plan your finish with the daylight safety planner.

Summit weather live

Loading forecast for the summit (621 m)…

Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).

Finding the summit

The recorded summit point is rock 5m NW of trig pillar. On broad or flat summits the obvious cairn is not always the true high point.

Survey method
Leica RX1250
Record revised
23-Feb-25

Survey notes are field observations recorded in the Database of British & Irish Hills (v18.3, CC BY 4.0) by the hill-surveying community.

Nearest listed peaks

PeakHeightDistance
Heacla 606.6 m 3.8 km