Round Rock of Porth Killier is an island in Isles of Scilly
Parish/Community: St. Agnes
Unitary Authority: Isles of Scilly
Region: South West
Category: Water Feature
Type: Island
Latitude/Longitude: 49°53'53"N 6°20'38"W
Eastings/Northings: 88155, 8814
OS Grid: SV881088
Mapcode Local: GBR BXQY.GYL
Mapcode Global: VGYC4.0T0H
Location and coordinates are for the approximate centre of Round Rock of Porth Killier within this administrative area.
Geographic features and populated places may cross administrative borders.