National Monument No. 532. In pasture on top of Clonin Hill with extensive views of the surrounding countryside. Impressive view of burial mound (OF010-004001-) on top of Croghan Hill 4.5km to W. Natural rock outcrop (H 0.6m x 1.4m x 1.6m) known locally as a mass-rock (SMR File) in SW quadrant of fosse of ring-barrow (OF011-001—-). The weathered NW facing surface of the rock contains features of natural weathering except for two horseshoe-shaped symbols and a cross with expanded terminals (SMR File).
122754,RO00012,MARO,RO002-001—-,ROSCOMMON,GREAGHNAGLOGH,R169121,590919,818410,54.114667859999997,-8.138887970000001,Mass-rock,Druid’s Altar,’Druid’s Altar’,https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CRO002-001—-,On a steep S-facing slope overlooking a shelf on the S-facing slope of Corrie Mountain. Marked similarly on the 1837 ed. of the OS 6-inch map. Rectangular slab (dims. 1.4m x 0.9m; T 0.6-0.75m) with a flat upper surface supported by a triangular base of stones (dims. 1.8m x 1.4m). The structure has a straight SE edge (H 1-1.5m) and a metal crucifix with some offerings lie on the upper stone. It was regarded as a megalithic structure (Borlase 1897

Monument Type: Mass-rock

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