Gellir lawrlwytho cynnwys at ddefnydd anfasnachol, megis defnydd personol neu ar gyfer adnoddau addysgol.
Ar gyfer defnydd masnachol cysyllwch yn uniongyrchol gyda deilydd yr hawlfraint os gwelwch yn dda.
Read more about the The Creative Archive Licence.

Disgrifiad

At their peak the three quarries employed around 110 men. Rock men drilled the holes into the face of the granite to set explosives which would bring down hundreds of tons of rock. 'Pop drillers' and 'breakers' used hammers and gun powder to break the granite into more manageable sizes. Blockers determined how many small sections or cubes were formed from the rock. Settsmen used a dressing hammer to shape the rocks into perfectly formed brick-like setts. Labourers, trammers and brakemen brought the granite down to the crushing mill and docks. Hundreds of tons of granite were quarried in the valley on a daily basis and ships regularly moored up alongside one of three jetties in the bay to be loaded with the setts and crushed stone. But during the early 20th century tarmac became the preferred road surface and the demand for granite declined.

Oes gennych chi wybodaeth ychwanegol am yr eitem hon? Gadewch sylwad isod

Sylwadau (0)

Rhaid mewngofnodi i bostio sylw