Through Letterkeen the trail makes its way along the eastern slopes of the Nephin Mountains on forestry tracks before emerging at Derry. As this is a dedicated wilderness area the trail will deteriorate over time. Please take care.
This is one of the largest forestry plantations in Ireland and soon to be part of a newly designated wilderness area. The main tree species are Lodgepole Pine, and Sitka Spruce with some Japanese Larch. The first plantings were made in 1951. Much of the first cropping is now complete. It covers an area of 4,843 hectares. The main soil type of the forest is blanket bog of varying depth.