found: Work cat.: Low, Christopher. Inchmarnock, 2008:p. 1 (a small, low-lying island off the west coast of Bute, in the outer reaches of the Firth of Clyde)
found: Barth. gaz. of places in Britain, 1986(Inchmarnock, S'clyde ... sparsely populated, low-lying island 1m W of Bute off St Ninians Pt. Measures about 2m/3km N to S and about 1 km across)
found: Gaz. for Scotland WWW site, Oct. 22, 2008(Inchmarnock is located 1m/1.5km to the west of St Ninian's Point, off the west coast of the Isle of Bute (Argyll and Bute). Covering an area of 253ha/625acres the island is relatively flat, the highest point being ... 60m/197feet in height; Lat. 55.7925ʻN Long. 5.1614ʻW)
found: Geonet, Nov. 13, 2008:(Inchmarnock; variant: Inch Marnock; ADM1, Argyll and Bute; 55°47ʹN 005°09ʹW; island)