 Clontycarnaghan is bounded on the north by Mullanacre Upper townland in Tomregan parish, on the west by Corneen and Munlough North townlands, on the south by Urhannagh and Bofealan townlands and on the east by Sralahan and Moher townlands in Tomregan parish.Its chief geographical features are Slieve Rushen mountain on whose southern slope it lies, the Crooked River (Ireland), waterfalls, mountain bogs, forestry plantations, spring wells and dug wells.It forms part of the Slieve Rushen Bog Natural Heritage Area .