R192 road (Ireland)The R192 road is a regional road in Ireland, linking Cootehill to Shercock in County Cavan. The route is long.RouteNorth to south the route starts at the R190 outside Cootehill. It heads southeast for 17km to its junction with the R181 just outside Shercock, along its route it passes Lough Tacker and Lough Sillan, Cohaw a Neolithic court tomb and crosses the River Annalee.