[1] The ecology of Castlefore Lough, and other county waterways, is threatened by curly waterweed, zebra mussel, and freshwater clam invasive species.

The lake has a tilted cone shape, a surface-area of 0.3 square kilometres (0.1 sq mi) and depths to 6 metres (19.7 ft).

[1][3] Fish present in Castlefore Lough include "roach-bream hybrids", roach, perch, bream, tench, and pike.

[7] The human settlements near Castlefore lough are Keshcarrigan and Fenagh villages, and the townlands of Gubroe to the northwest, Killmacsherwell to the north, Annaghaderg to the south, and Leamanish to the southeast.

When I woke from my slumber in this far foreign place I felt happy and longed for to dream once again, on The lovely blue waters of Castlefore Lake".