The cliffs and woods have been so far disfigured by quarries that public feeling was aroused, and in 1904 an "Avon Gorge Committee" was appointed to report to the corporation of Bristol on the possibility of preserving the beauties of the locality.
The material employed for the great obelisks was a pink granite from the quarries of Syene, and in these quarries there still remains,.
Small up to the beginning of the 19th century, Holywell has increasingly prospered, thanks to lime quarries, lead, copper and zinc mines, smelting works, a shot manufactory, copper, brass, iron and zinc works; brewing, tanning and mineral water, flannel and cement works.
Other precious stones found are chalcedony, garnet, jacinth, amethyst, carnelian, agate, rock-crystals, &c. Amber is found at Magura in Zsepes, while fine marble quarries are found in the counties of Esztergom, Komarom, Veszprem and Szepes.
Like most of the buildings at Sydney, the university is built of the excellent sandstone from the quarries of Pyrmont; it is 15th-century Gothic in style and stands at the top of a gentle slope, surrounded by gardens.