| Fifty-four sites are found in the central area
of County Durham within the exposed coalfield. Nine are located
in the concealed coalfield to the east. Tow others are found
by theTees - Port Clarence and Preston-on-Tees - lying south
of the Butterknowle Fault, in a region of Permian and Triassic
sandstones. Of those within the exposed coalfield, the majority
are in high rank areas, with coals of 88-89% carbon, in mining
villages with collieries worked by a variety of coal owners.
Some were built in villages where many of the male inhabitants
worked in nearby mines, like Craghead, close to Hedly & Co.'s
South Moor Collieries, and Utrick Ritson's Burnhope colliery;
or Hill Top, near the pits of John Bowes and Partners, and the
South Garesfield Coal Co. Others include Oxhill, East Stanley,
Catchgate, and Bishop Auckland. Windlestone has been a mining
village until the Peases closed the pit on 1874, and Chilton's
mine was exhausted prior to 1894. Dunston was associated with
the coal shipping trade, although many men were also employed
across the Tyne at Armstrong's Elswick works. The economy of
settlement at Consett, Tudhoe, and Port Clarence was more closely
linked to the iron and steel industry. The Consett Iron Co. had,
from 1864, developed into a highly integrated business, with
ten collieries, cokeyards, and iron ore mines at Bilbao in Spain
(in association with Dowlais Iron Co., Krupps and Harra). Tudhoe's
forges and mills were linked to Weardale Iron Company's furnaces
at Tow Lane, until the operation was transferred to Cargo Fleet
on the takeover of the company by Sir Christopher Furness. At
Port Clarence, Isaac Lowthian Bell's blast furnaces were established
in 1854. In addition to iron, this latter area became important
for glass making and the pumping of brine. Gateshead's industries
were largely dominated by engineering, chemicals, brass working
and brewing. Near Sunderland, Roker's workforce were employed
in marine engineering, shipbuilding, and in glass manufacture. |