Disused lead mines on western side ringforts in West and East .
Rooska West ( 298 acres ) East ( 295 acres ) ( Irish : Riasca , meaning ' marshes ' ) .
Disused lead mines on western side ringforts in Rooska West and East .
Rooska West ( 298 acres ) East ( 295 acres ) ( Irish : Riasca , meaning ' marshes ' ) .