Brackley is bounded on the north by Mullaghlea townland, on the west by Prospect, Corlough parish and Derrymony townlands, on the south by Killyneary, Carrick East and Gortnavreeghan townlands and on the east by Mullanacre Upper townland in Tomregan parish. Its chief geographical features are Slieve Rushen mountain on whose western slope it lies, Brackley Lough, mountain streams, mountain bogs, Brackley Wood, forestry plantations, stone quarries and dug wells. It forms part of the Slieve Rushen Bog Natural Heritage Area An island in Brackley Lough is called the Baron's Island after a Baron de Trent who lived in Brackley House c.1850 and who built a studio on the island. Brackley is traversed by the regional N87 road (Ireland) and rural lanes. The townland covers 619 statute acres.