Altnaheglish Reservoir

Embark on the Banagher Glen Forest Trail, a moderate hike that spans 8.2 miles (13.3 km) with an elevation gain of 923 feet (281 metres). This route guides you through one of Ireland's oldest ancient oak woodlands, following the soothing Banagher Stream. You will eventually reach the impressive Altnaheglish Reservoir and Banagher Dam, offering panoramic views of the Sperrin Mountains from higher points. Expect to spend around 3 hours and 44 minutes exploring this diverse landscape. The trail features varied terrain, including surfaced roads and forest tracks, with some very steep sections leading to the dam. Sturdy footwear is highly recommended due to rocky and uneven paths you may encounter. While specific parking details are not provided, the trailhead is accessible for you to begin your adventure. This trail is notable for its rich natural environment, as it is a designated Special Area of Conservation. The steep glens are home to mature trees like oak and ash, along with an understory of rowan, hazel, and holly. You can also catch glimpses of Donegal in the distance from certain vantage points, adding to the scenic appeal of the area.

Embark on the Banagher Glen - Forest Trail, a moderate hike that leads you through one of Ireland's most ancient oak woodlands. You will follow the winding Banagher Stream, which guides you towards the tranquil Altnaheglish Reservoir and the impressive Banagher Dam, offering expansive views across the water. This route covers 8.6 miles (13.9 km) and involves a steady climb of 904 feet (276 metres), typically taking around 3 hours and 53 minutes to complete. Keep an eye out for a beautiful waterfall, especially after a good rain, and enjoy the panoramic vistas as you gain elevation.

When planning your visit, be aware that certain sections around the Altnaheglish Reservoir can become flooded following heavy rainfall, so check conditions beforehand. While the trail offers well-worn paths, some areas within the forest lack clear signage, making a map or navigation tool a helpful companion. You might also find mobile phone reception to be intermittent in parts of the glen, so download your route in advance. This trail is best enjoyed when you have some hiking experience and a reasonable level of fitness.

This route is notable for immersing you in a rare ancient oak woodland ecosystem, home to diverse wildlife. In spring, the forest floor transforms with a carpet of bluebells, adding a vibrant splash of color to your journey. You might also spot red squirrels darting among the trees or hear various bird species singing. The trail's path along the Banagher Stream and past the reservoir highlights the natural beauty and historical significance of this protected area.