Farewell rock

(Mining) the Millstone grit; - so called because no coal is found worth working below this stratum. It is used for hearths of furnaces, having power to resist intense heat.
- Ure.

See also: Farewell

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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Shortly after the commission in 2006 he won the Gold Medal for Fine Art at the National Eisteddfod for his images Farewell Rock, a collection of photographs taken in the mountains above Cwmllynfell.