
What is recorded here
Black Rocks is a coastal rock feature in County Mayo, composed primarily of basalt, formed during volcanic activity in the late Carboniferous to early Permian period, around 300 to 320 million years ago. The dark, columnar basalt is notable for its distinctive appearance and is part of the broader geological formation associated with ancient lava flows in western Ireland.
Places near here
Religious houseReligious house, unclassified · 693 yd
Lamb IslandIslet · 1618 yd
IndicatedFairy fort / earthen ringfort · 1642 yd
Carrigeennaminna IslandIslet · 1.1 mi
CarrigeenbaunNamed rock · 1.1 mi
Devenish RocksNamed rock · 1.2 mi
Enclosure in KnocknamucklaghEnclosure · 2.4 mi
LabbadermotCave · 3.0 mi
Runnet HillMountain / peak · 3.3 miOther information
Photo: Credit not shown in the picture search · Rights wording not checked; contact us if this picture should be removed