Altnaheglish Reservoir sits at the head of Banagher Glen, a deep wooded ravine in the Sperrins of County Londonderry, a few miles south of Dungiven. The reservoir is long and usually very still, held back by a stone dam that comes into view quite suddenly as you climb up through the trees. Below it ...
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2 overnight parking
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FAQ's/Things to Know
Where is Altnaheglish Reservoir?
Northern Ireland's rolling landscape hides this remote spot deep within the Sperrin Mountains. Hikers will need a reliable map because the dense surrounding forest lacks helpful directional signage.
What type of place is Altnaheglish Reservoir?
Altnaheglish Reservoir is a mountain reservoir and stone dam situated in the Sperrin Area of Outstanding Natural Beauty in Northern Ireland.
When is the best time to visit Altnaheglish Reservoir?
Spring through to autumn offers the most pleasant conditions for walking the lakeside gravel trails. Clear seasonal days bring out the best colours across the open water surface.
What can you do at Altnaheglish Reservoir?
Walking along the quiet shoreline tracks provides a peaceful escape from busy highways. Photography enthusiasts often capture the dramatic sky reflecting off the calm water.
How long should I spend at Altnaheglish Reservoir?
Allowing a couple of hours ensures enough time to enjoy a decent walk up to the impressive dam structure. Serious walkers frequently choose to combine the reservoir with a longer loop through Banagher Forest.
Where do I park at Altnaheglish Reservoir?
Vehicles can use the two available spaces nearby, which provide overnight parking. Full details are available on the UK Hidden Gems app.
Where can I eat near Altnaheglish Reservoir?
There are no food spots recorded immediately near Altnaheglish Reservoir, check the UK Hidden Gems app for the nearest options.
Where can I stay near Altnaheglish Reservoir?
There are no staycation spots recorded immediately near Altnaheglish Reservoir, check the UK Hidden Gems app for the nearest options.
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Last Updated:
02 July 2026
