Marilyn · islands
Mullach Mor
The name means 'big summit' in Gaelic. A low-level 304m summit on the wild Isle of Rum that proves hills do not need to be high to be rewarding. The prominence gives this Marilyn genuine character.
Gaelic: “summit, top, big” · Pronunciation: mull-ach more
Quick facts
- Height
- 304m/ 997ft
- Difficulty
- 1 / 5Easy
- Grid ref
- NG 38668 01502
Download GPX route file
Standard route
Standard route
A short, accessible walk with Atlantic exposure and views to neighbouring islands to the 304m summit. The low altitude and gentle gradients make this achievable in 1-3 hours.
Terrain
Low-level island terrain with good natural drainage. The maritime climate keeps the ground green year-round.
In winter
Island winters are mild but stormy. Snow is rare at low levels. The main winter challenge is short daylight and frequent gales.
Best time of year
Getting there
- Glasgow6h 8m
- Edinburgh9h 32m
OS maps: OS Landranger 32, OS Landranger 39, OS Explorer 397
Current conditions
Daylight Today
- Sunrise
- 05:35
- Sunset
- 21:09
- Civil dawn
- 04:49
- Civil dusk
- 21:56
NOAA Solar Calculator · 2 May 2026