River Moy entrance from Admiralty Chart No 2767, Richard Brydges Beechey, 15 June 1860

Nautical chart of sligo and killala bays, at a scale of 1:58,400. Surveyed by commrs. G. A. Bedford and r. B. Beechey assisted by lieuts. A. G. Edye, f. W. Sidney, messrs. A. B. Usborne, j. F. Davis, masters & t. B. Horner, mate, 1852-4. Not current - not to be used for navigation! Date: 15 June 1860.