Marilyn · Glen Coe & Lochaber
Beinn an Tuim
The name means 'peak' in Gaelic. Rising to 812m near Fort William in the shadow of Ben Nevis, this Marilyn demands respect. The 150m prominence ensures genuine isolation from surrounding hills, with views extending to the horizon on clear days.
Gaelic: “mountain, peak” · Pronunciation: bine
Quick facts
- Height
- 812.7m/ 2666ft
- Difficulty
- 3 / 5Challenging
- Grid ref
- NM 92935 83538
Download GPX route file
Standard route
Standard route
A hill walk of moderate to high difficulty past waterfalls and through Atlantic oakwood on the lower slopes. The upper slopes steepen near the 812m summit. Allow 3-5 hours for the round trip.
Terrain
Rough ground typical of Lochaber — a mix of rock, peat and grass. The terrain is more demanding than the height suggests.
In winter
Lochaber winter conditions are variable — Atlantic weather means rapid freeze-thaw cycles. Check conditions carefully. Snow can fall at any altitude.
This hill is in the Glen Coe SAIS forecast area. Check SAIS forecasts in winter (December–April).
Best time of year
Getting there
- Glasgow4h 0m
- Edinburgh6h 13m
OS maps: OS Landranger 40, OS Explorer 398E
Current conditions
Daylight Today
- Sunrise
- 05:32
- Sunset
- 21:05
- Civil dawn
- 04:46
- Civil dusk
- 21:52
NOAA Solar Calculator · 2 May 2026