How hard is Conostom?

Conostom is rated 1/5 (easy) on the OutdoorSCOT scale. Terrain: Pathless blanket bog with peat hags, lochans and outcrops of Lewisian gneiss.

When is the best time to climb Conostom?

The standard good-weather months for Conostom are April, May, June, July, August, September, October. Outside those months, expect winter conditions on the high ground — full mountain kit, navigation skills, and a check of the SAIS avalanche forecast for the relevant region.

Can I bring my dog up Conostom?

Yes, but dogs must be kept on a lead — there is livestock or ground-nesting bird interest on the route.

How do I get the ferry to Conostom?

Ullapool → Stornoway (Lewis). 2 sailings daily (Apr–Oct) in summer; 1 sailing daily (Nov–Mar) in winter. Book at least 14 days ahead. Allow 1–2 hours drive from Stornoway to reach the Harris hills. For South Harris hills, Uig → Tarbert may be more convenient.

How hard is Conostom?

Conostom is rated 1/5 (easy) on the OutdoorSCOT scale. Terrain: Pathless blanket bog with peat hags, lochans and outcrops of Lewisian gneiss.

When is the best time to climb Conostom?

The standard good-weather months for Conostom are April, May, June, July, August, September, October. Outside those months, expect winter conditions on the high ground — full mountain kit, navigation skills, and a check of the SAIS avalanche forecast for the relevant region.

Can I bring my dog up Conostom?

Yes, but dogs must be kept on a lead — there is livestock or ground-nesting bird interest on the route.

How do I get the ferry to Conostom?

Ullapool → Stornoway (Lewis). 2 sailings daily (Apr–Oct) in summer; 1 sailing daily (Nov–Mar) in winter. Book at least 14 days ahead. Allow 1–2 hours drive from Stornoway to reach the Harris hills. For South Harris hills, Uig → Tarbert may be more convenient.

By Gary Innes

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Marilyn · Outer Hebrides

Conostom

Conostom rises behind Uig in west Lewis, a quiet 256m bog-and-rock dome with a 150m prominence that earns it Marilyn status. The summit cairn looks across to the Uig hills and the Atlantic horizon beyond Mealasta.

Quick facts

Height: 256m/ 840ft
Difficulty: 1 / 5Easy
Grid ref: NB 16649 29966
Dogs: Dogs on lead required near livestockDog-friendly guide ↗

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Standard route

blanket bog 55% · heather moorland 30% · rocky summit 15%

GPX needed

Elevation profile coming with the GPX track

Park near Mangersta or Crowlista and strike east across open moorland, picking a line through the peat hags toward the rocky summit knoll. There is no path; expect rough ground but a manageable climb of two to three hours return.

Terrain

Pathless blanket bog with peat hags, lochans and outcrops of Lewisian gneiss. Drier on the final knoll where short heather and rock take over.

In winter

A low Atlantic hill so snow rarely lies, but gales, driving rain and short daylight make navigation hard. GPS or compass is essential in cloud.

Best time of year

Best OK Avoid

Getting there

Glasgow9h 56m
Edinburgh11h 1m

Ferry access

Ullapool → Stornoway (Lewis)

Crossing time165 min
Summer sailings2 sailings daily (Apr–Oct)
Winter sailings1 sailing daily (Nov–Mar)
Book ahead14 days
Last ferry backCheck CalMac timetable

Allow 1–2 hours drive from Stornoway to reach the Harris hills. For South Harris hills, Uig → Tarbert may be more convenient.

Book on CalMac ↗

OS maps: OS Landranger 13, OS Explorer 458, OS Explorer 459W

Mobile signal: Poor. No reliable coverage; nearest EE signal near Stornoway.

Current conditions

Daylight Today

20h 45mwalking daylight

Sunrise: 04:22
Sunset: 22:34
Civil dawn: 03:05
Civil dusk: 23:50

NOAA Solar Calculator · 16 June 2026

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Around Conostom on the SCOT network

Getting there, basing yourself, and what to do off the hill.

On TripSCOT

town

Base yourself in Tarbert (Harris)

Harris base — Clisham, Luskentyre, Hebridean Way

30km from the hill

tripscot.co.uk

On TasteSCOT

distillery

After the hill: Isle of Harris

Tarbert (Harris) — new island distillery; also known for the Harris Gin

30km from the hill

tastescot.co.uk

Conostom — common questions

How hard is Conostom?: Conostom is rated 1/5 (easy) on the OutdoorSCOT scale. Terrain: Pathless blanket bog with peat hags, lochans and outcrops of Lewisian gneiss.
When is the best time to climb Conostom?: The standard good-weather months for Conostom are April, May, June, July, August, September, October. Outside those months, expect winter conditions on the high ground — full mountain kit, navigation skills, and a check of the SAIS avalanche forecast for the relevant region.
Can I bring my dog up Conostom?: Yes, but dogs must be kept on a lead — there is livestock or ground-nesting bird interest on the route.
Is there mobile signal on Conostom?: Poor. No reliable coverage; nearest EE signal near Stornoway.
How do I get the ferry to Conostom?: Ullapool → Stornoway (Lewis). 2 sailings daily (Apr–Oct) in summer; 1 sailing daily (Nov–Mar) in winter. Book at least 14 days ahead. Allow 1–2 hours drive from Stornoway to reach the Harris hills. For South Harris hills, Uig → Tarbert may be more convenient.
Is Conostom safe in winter?: A low Atlantic hill so snow rarely lies, but gales, driving rain and short daylight make navigation hard. GPS or compass is essential in cloud.

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