411 REFERENCE · Wiktionary
Farewell Rock
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Said to have been coined by ironstone miners who once worked the siderite deposits which stratigraphically overlie this rock unit. Digging beyond this bed would yield no further iron ore and so, on reaching it, they could bid a farewell to further riches.
Proper noun
Farewell Rock
A series of sandstones which lie at the boundary of the Coal Measures with the underlying Marros Group in South Wales.