Errisbeg Mountain (also called Errisbeg Hill)

📍 Roundstone, Galway

🏛️ Attraction

Last updated: 28 April 2026

Overview

Diamond Hill, Trail, Connemara, National Park, Co Galway
Diamond Hill, Trail, Connemara, National Park, Co Galway Courtesy Bernice Naughton

Errisbeg Mountain (Irish: Iorras Beag), also known as Errisbeg Hill, dominates the skyline above the fishing village of Roundstone in western County Galway. At roughly 280‑300 m (≈950 ft) high it qualifies as both a Marilyn and a Hewitt, marking it as one of Connemara’s most prominent peaks. The hill sits on the edge of the famed Roundstone Bog and drops sharply toward the Atlantic, offering one of the most accessible high‑point viewpoints on the Wild Atlantic Way.

History & Background

The name Iorras Beag translates to “little peninsula”, a nod to the hill’s jutting position into the sea‑filled landscape. While the summit bears no ancient ruins, its rugged slopes have long inspired artists and writers such as W. B. Yeats and J. M. Synge. Historically it served as a navigational landmark for local fishermen and a summer grazing ground for sheep.

What to See & Do

Hiking the Summit

  • Trailhead: Small free car park off the R341, a short walk from Roundstone harbour.
  • Route: A 5‑7 km round‑trip (the classic 7 km loop or a shorter 5 km direct ascent) with an elevation gain of about 450 m.
  • Terrain: Open hillside, wet bog sections, a sheep‑track and brief stretches of surfaced minor road. The path is unmarked in places; a map or GPS (53.395050, -9.958932) is advisable.
  • Duration: 4–5 hours total; most walkers reach the cairn‑topped summit in roughly two hours.
  • Difficulty: Moderate to difficult – steady fitness and sturdy boots recommended.
  • Dog‑friendly: Dogs are permitted on the trail, but owners should keep them on a lead in boggy sections and respect livestock.

Flora, Fauna & Landscape

During the warmer months the slopes burst with heather, gorse and alpine wildflowers, while the lower bog supports rare blanket‑bog plants. Sheep are a common sight, and birds of prey often circle the ridge. The proximity to Roundstone Bog adds a chance to spot specialised bog‑land flora.

Panoramic Views

The Twelve Bens (or the Twelve Pins), County Galway
The Twelve Bens (or the Twelve Pins), County Galway Courtesy of Tourism Ireland & © Big Smoke Studio

From the summit cairn a 360° vista unfolds:

  • South – the Aran Islands on a clear day.
  • North – the Twelve Bens and the village of Clifden on the horizon.
  • East – Roundstone Bog and Dog’s Bay.
  • West – the endless Atlantic, with the distant hills of County Mayo visible on exceptionally clear days.

Nearby Attractions & Beyond the Hike

Kylemore Abbey, Co Galway
Kylemore Abbey, Co Galway Chris Hill Photographic
  • Roundstone Village – harbour, craft shops, pubs and seafood restaurants.
  • Dog’s Bay & Gorteen Bay – sandy beaches perfect for a post‑hike stroll.
  • An Trá Mór – a nearby Blue Flag beach ideal for a dip after walking.
  • Kylemore Abbey – historic estate a short drive away.
  • Cycling – a 12 km ride from Ballynahinch Castle estate to the trailhead offers an alternative perspective.

Getting There

By Car – From Galway city take the R341 westwards; the trailhead car park is sign‑posted just outside Roundstone. Parking is free but limited, arriving early in peak season is advisable.

Public Transport – Bus services run from Galway to Roundstone on weekdays; check the latest Timetable for stops closest to the trailhead. (Further details to be confirmed.)

Practical Information

ItemDetails
Trail lengthApprox. 5 km (direct) – 7 km (loop)
Elevation gain~450 m
Typical duration4–5 hrs (full loop)
DifficultyModerate to Difficult
ParkingSmall free car park at trailhead off R341
GPS Coordinates53.395050, -9.958932
AdmissionFree
Best seasonLate spring to early autumn for wildflowers and clear views
Dog policyDogs allowed on leash in sensitive areas
Opening hoursOpen year‑round

Enjoy a day of walking, wildlife spotting and unrivalled coastal scenery on Errisbeg Mountain – a compact yet unforgettable slice of Connemara’s wild heart.