placenamesGorumna Island
Garmna
A seabed survey traced a major geological boundary offshore from Gorumna and Lettermullan.
The name
A reliable full-name meaning has not been established here. The recorded Irish and English forms are given without an unsupported translation.
Recorded forms
- Garmna · Irish · main form · validated name
- Gorumna Island · English · main form
Place & story
The Galway Bay Fault
A joint Geological Survey of Ireland and Marine Institute survey aboard the research vessel Celtic Voyager confirmed the position of the Galway Bay Fault in the North Sound. The fault runs northwest to southeast between the Gorumna–Lettermullan islands and Aran, marking the limit of the granite landscape. The survey also revealed a parallel ridge off Rossaveel and helped distinguish granite from limestone beneath the bay, extending geological mapping beyond the visible island shores. [2]
Geographic information
Sources & further reading
- Logainm.ie — Gorumna Island. Place names and geographic record, licensed under CC BY 4.0.
- Celtic Voyager Survey Reveals Seafloor and Geology of Galway Bay · Marine Institute
Name record retrieved 2026-10-25 · Source record modified 2024-10-14. How this page was prepared.