Mullacor
Mullacor is a prominent mountain summit in County Wicklow, Republic of Ireland, rising to approximately 657 metres above sea level. It forms part of the Wicklow Mountains, one of the largest upland areas in Ireland, and sits within the Wicklow Mountains National Park. The peak is a significant landmark in the southern part of the park and is well regarded among hillwalkers and outdoor enthusiasts who seek its commanding views over a wide swathe of Wicklow's wild interior. Unlike some of the more heavily touristed peaks in Wicklow such as Lugnaquilla or the Sugarloaf, Mullacor retains a sense of genuine remoteness and rewards those who make the effort to reach it with a feeling of having earned their solitude.
The mountain is closely associated with the Glenmalure valley, one of the longest and most atmospheric glacial valleys in Ireland. Glenmalure lies to the south of Mullacor and has deep roots in Irish history, serving as a stronghold of the O'Byrne clan, who used the valley's inaccessibility to resist English colonisation during the sixteenth and seventeenth centuries. The valley featured prominently in the aftermath of the 1798 Rebellion, when United Irishmen fleeing defeat used Wicklow's mountains as refuge, and the broader landscape including the uplands around Mullacor formed part of the terrain traversed during that tumultuous period. The Military Road, built by the British authorities specifically to penetrate and control this wild country after 1798, passes not far from the mountain, a reminder of how geopolitical events shaped even this remote upland.
The physical character of Mullacor is distinctly moorland in nature. The summit and upper slopes are blanketed in blanket bog, heather, and rough grass typical of the Wicklow uplands. The ground underfoot can be soft and boggy, particularly after rainfall, and walkers should expect wet conditions for much of the year. The summit itself offers an open, largely featureless plateau feel with a modest cairn marking the highest point. On a clear day the views are exceptional, extending north toward Camaderry and the Turlough Hill reservoir, east toward the Vale of Clara, and south and west across the wilder interior of Wicklow. In mist — a frequent condition — the summit takes on an altogether more mysterious and introspective quality, with visibility reduced to a few metres and the sounds of wind and bog settling into a kind of profound quietness broken only by the calls of red grouse or the high circling of a peregrine.
The surrounding landscape is one of the most intact pieces of upland wilderness in the Irish Republic. Immediately to the east lies the deeply wooded Vale of Clara and the Clara Valley, with the Avonmore River threading through old oak woodlands that form part of the Avonmore Scenic Drive. To the south, the glen of Glenmalure drops steeply and dramatically, its floor holding the Avonbeg River and a scattering of farmsteads. Nearby summits include Carrigvore and Cullentragh, and the broader Wicklow massif stretches away in every direction. The area supports red deer, hen harrier, peregrine falcon, and merlin, making it of considerable wildlife interest in addition to its scenic appeal. The blanket bogs support specialist plant communities including sundew, bog asphodel, and various sphagnum mosses.
For walkers planning a visit, Mullacor is most commonly approached from the Glenmalure valley to the south or from the Clara valley to the east. The ascent from Glenmalure is steep and unrelenting in places but follows natural ridgelines that offer improving views as height is gained. There are no waymarked trails to the summit, so good navigational ability and appropriate equipment — including map, compass, and waterproofs — are essential. The mountain is best visited between late spring and early autumn when daylight hours are longest, though even in summer the weather can change rapidly and temperatures at the summit can be significantly lower than in the valleys. Car parking is available at several points in Glenmalure and at the Clara valley approaches, though these are small and can fill quickly on popular weekends.
One of the lesser-known appeals of Mullacor is its position as a superb viewpoint over Turlough Hill, Ireland's only pumped-storage hydroelectric station, whose upper reservoir sits visibly on the plateau of Camaderry to the northwest. This reservoir, constructed in the 1970s, involved significant engineering works in the heart of the national park and remains a striking and somewhat incongruous sight when viewed from the wild bogland of Mullacor's summit. The contrast between the engineered infrastructure and the surrounding wilderness gives pause for thought about the competing uses of even protected upland landscapes. For those with a sense of the longer arc of Irish history and landscape, standing on Mullacor and looking out over Glenmalure, with its weight of resistance and refuge, is a quietly moving experience.