Bellavally Lower is bounded on the north by Bursan townland, on the west by Corracleigh, Derrynananta Lower and Tullyminister townlands, on the east by Commas (Kinawley) townland and on the south by Bellavally Upper townland. Its chief geographical features are Cuilcagh mountain (on whose western slope it lies), the Owenmore River (County Cavan), mountain streams, waterfalls, swallow-holes, forestry plantations and spring wells. Bellavally Lower is traversed by the regional R200 road (Ireland), minor public roads and rural lanes. The townland is popular with mountain hikers and is also noted for geological formations such as the Dinantian (Asbian) Glenade Sandstone Formation and the Bellavally Formation. The townland covers 1,021 statute acres.