When did Dorothea quarry close?

1970
During this time, the company leased land on the Pant Du estate, Llandwrog. Following the steady decline in the slate industry in Wales, the Dorothea Slate Quarry Co. Ltd entered liquidation in 1970, and the quarry was closed in 1971.

Can I swim in Dorothea quarry?

Over 100m deep in places, the lake is the flooded amalgamation of many individually operated quarry pits of varying depths. Swimmers are welcome at the diving pontoon, at the end of a rough vehicle track.

Who owns Dorothea quarry?

Local ownership A group of quarrymen led by John Robinson, William Owen and John Jones purchased Dorothea from Turner for £3,000 – equivalent to £319,149 in 2016.

How deep is Dorothea quarry?

Depth: Dorothea has a max of 104.5m deep, in the sump tunnel, but most of it bottoms out at around 87 ish, you can get a little deeper in the two small sumps, but only a couple of metres really.

How many people have died in Dorothea quarry?

25 deaths
Dorothea quarry death: British Sub Aqua Club urges divers to stay away from site that has witnessed 25 deaths.

How deep is the water in Penrhyn Quarry?

At the end of the nineteenth century it was the world’s largest slate quarry; the main pit is nearly 1 mile (1.6 km) long and 1,200 feet (370 metres) deep, and it was worked by nearly 3,000 quarrymen….Penrhyn quarry.

Can you swim in dinorwic quarry?

The lake is over 100m deep in places, the lake is the culmination of many flooded quarry pits. Swimmers are welcome at the diving pontoon, at the end of a rough vehicle track.

Where do you park for the Dorothea Quarry?

Walk – Explore the Dorothea Quarry at Talysarn

• Parking is free by the roundabout at the end of Nantlle Road.
• The track is hardstanding but there are many water-filled pot holes. There are no stiles or gates but there are a few rogue sheep grazing the area.

Who owns Welsh slate?

the Breedon Group
Welsh Slate is part of the Breedon Group. The business in its current format was acquired from Alfred McAlpine in December 2007 who had since the 1960s expanded the business from its headquarters at Penrhyn Quarry to include operations at Blaenau Ffestiniog, Cwt-y-Bugail and Pen yr Orsedd.

How old is Welsh slate?

500 million years old
Uniquely 500 million years old, the material is widely recognised as the finest natural slate in the world. Welsh Slate is the world’s leading manufacturer of high-quality slate for an unparalleled range of design-led applications.

Where is the secret waterfall Snowdonia?

You’ll find Swallow Falls in the Snowdonia National Park near Betws y coed. It’s one of the areas most visited attractions. This is not a typical waterfall with a single drop but more like a series of steep rapids as the river Llugwy flows through a steep rift in the earth.

Where is the Dorothea Quarry in North Wales?

Dorothea quarry is a large slate quarry in the Nantlle Valley in North Wales . The quarry covers a large area around Talysarn and contains three flooded deep lakes within the site. Dorothea commenced working in the early 1820s, though there were a number of smaller workings on or near the site before this.

Is the quarry at Talysarn open to the public?

The quarry is now flooded and regularly used (unofficially) for scuba diving. This is an easy walk but stout shoes/boots should be worn. Parking is free by the roundabout at the end of Nantlle Road

When was the road between Talysarn and Nantlle built?

Part of the road between Talysarn and Nantlle collapsed into the Dorothea Quarry in 1924, and shortly after, a new road was built on the southern side of the valley, where once was the Lower Lake Nantlle.

How did the village of Talysarn get its name?

The village developed in the late 18th century in the Pen-y-Bont area ~ the land was formerly part of Coedmadog Farm. Due to the success of the ‘Cloddfa Coed’ Slate Quarry between 1850 and 1870 the village quickly expanded.