Harlech group

Har´lech group`

    (här´lĕk grŌp`)
1.(Geol.) A minor subdivision at the base of the Cambrian system in Wales.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
"It's a fantastic idea and in the past few months the Harlech group has proved its worth," said Amanda.