This collection of maps was found in Balla Secondary School, formerly Athaville House, by the principal Mr. Patrick Sheridan and prior to that had been considered lost or destroyed for over a century. They were very generously entrusted to Mayo County Library who undertook to conserve them and digitise them in order to make them available over the Internet. The maps cover an area ranging from Balla to Lough Mask and Lough Carra and extending eastwards beyond Claremorris. The maps consist of two distinct sets (1 set complete and one map missing from one set) and the remaining maps have been grouped together as a miscellaneous collection. The National Library holds negative plates of these maps but it is thought that these are the only originals.
DjVu-viewer must be installed.