Plizio Visual Lab

Ox Mountains

Plizio editorial teamUpdated: Jun 2026Data Sources

Mountain

Weather…

The Ox Mountains, known in Irish as Slieve Gamph, are an ancient range in County Sligo, northwest Ireland. Geologically, they are among the oldest mountains in Ireland, composed of Precambrian gneiss and schist that date back over 600 million years. The highest peak is Knockalongy, standing at 544 metres. The range stretches for about 60 kilometres, forming a vast upland plateau characterized by blanket bogs and deep-cut valleys. The region is of significant ecological importance, providing a sanctuary for rare birds of prey such as the hen harrier. The River Moy, one of Ireland's premier salmon rivers, rises within these mountains. Historically, the area was famed for its dense forests, which were heavily harvested in the 18th and 19th centuries to supply timber for the British Royal Navy's shipbuilding. Today, the Ox Mountains offer a peaceful escape for hikers, with numerous trails winding through a rugged, untouched landscape. Scattered mountain lakes and ancient megalithic tombs testify to a long history of human habitation in the area. The range has expansive views over the Atlantic Ocean and the plains of Sligo, making it an under-the-radar destination for nature enthusiasts.

Location: Ireland
Nearby: Inishcrone (23 km)

Best time to visit & climate

The most pleasant time to visit is Jun–Aug.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	5	5	6	8	11	13	15	14	13	10	7	5
Rain mm	123	96	92	76	93	100	111	120	99	119	131	129

📋 Practical info

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Getting there

Access to Ox Mountains is typically via local rural roads near County Sligo. A physical map is highly recommended as exact starting points for this area vary greatly.

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Best season

The best season to visit is typically from late spring to early autumn, offering longer daylight hours. Winter brings harsh weather and poor visibility.

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Terrain & paths

Expect rough, uneven terrain and open moorland typical for the region. Navigation skills are essential, as clear and marked trails are often non-existent.

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What to bring

Waterproof hiking boots are necessary for the boggy ground. Always pack warm, layered clothing, a reliable map, compass, and sufficient food and water.

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Parking

Parking is generally informal along quiet country roads or small lay-bys. Visitors should ensure they never block local traffic or agricultural entrances.

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Safety

Weather conditions in the mountains can change rapidly. Always check the local forecast before departing and inform someone of your planned hiking route.

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Time needed

A typical visit to explore the higher elevations takes around three to five hours. Always allow extra time for navigating pathless sections safely here.