Here is information about Sheet 26:
This Inch to the Mile map covers the area around and to the west of Draperstown, include the southern Sperrins and Drum Manor, westward to Mountfield.
Features include Draperstown, Grockundun Hills, Beaghmore, Glenell River and valley, Lough Fea, Cashel Rock, Copney Hill, Beleevnamore Mountain, Carnanelly etc A detailed map of Draperstown itself is included on the reverse.
It is not possible to list the many hamlets, farmsteads and other topographical features shown on these maps. However, you may find it useful if we list the towns and principal villages or church parishes that are included on this map. Links are given for those for which detailed large-scale maps are also available.