Lough Gara was known in ancient times as Lough Techet, but the O'Garas, during their ownership of the Coolavin district from about the thirteenth century, renamed the lake “Loch Uí Ghadhra”. The first documented reference appeared in 1285. Even though the family lost control of all their Coolavin townlands about 1650, their name has remained on the lake to the present day. The area around Lough Gara is referred to as “O'Gara heartland”.
The cache is a small vial containing a logbook and pen located at the bridge over the Boyle River, which is the boundary between counties Roscommon and Sligo.