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image for Industrial Heritage item typeRavenscar Coastal Centre - Alum Works at Ravenscar Coastal Centre

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Industrial Heritage, free entry

Alum Works: National Trust Centre - Ravenscar

Alum Works: National Trust Centre - Ravenscar

Details

At first glance the stunning views on the Yorkshire Coast seem like a rugged natural landscape created by time and tide. In fact, human history is as significant as natural history in the shaping of this beautiful coastline.

In the 16th-century alum was essential in the textile industry as a fixative for dyes. Initially imported from Italy where there was a Papal monopoly on the industry, the supply to Great Britain was cut off during the Reformation. In response to this need Thomas Challoner set up Britains first Alum works in Guisborough. He recognised that the fossils found around the Yorkshire coast were similar to those found in the Alum quarries in Europe. As the industry grew, sites along the coast were favoured as access to the shales and subsequent transportation was much easier.

Alum was extracted from quarried shales through a large scale and complicated process which took months to complete. The process involved extracting then burning huge piles of shale for 9 months, before transferring it to leaching pits to extract an aluminium sulphate liquor. This was sent along channels to the alum works where human urine was added.

At the peak of alum production the industry required 200 tonnes of urine every year, equivalent to the produce of 1,000 people. The demand was such that it was imported from London and Newcastle, buckets were left on street corners for collection and reportedly public toilets were built in Hull in order to supply the alum works. This unsavoury liquor was left until the alum crystals settled out, ready to be removed. An intriguing method was employed to judge when the optimum amount of alum had been extracted from the liquor when it was ready an egg could be floated in the solution.

The last Alum works on the Yorkshire Coast closed in 1871. This was due to the invention of manufacturing synthetic alum in 1855, then subsequently the creation of aniline dyes which contained their own fixative.

There are many sites along the Yorkshire Coast which bear evidence of the alum industry. These include Loftus Alum Quarries where the cliff profile is drastically changed by extraction and huge shale tips remain. Further South are the Ravenscar Alum Works, which are well preserved and enable visitors to visualise the processes which took place.

Gift shopNational Trust PropertyAccepts groups

Children welcomeDisabled accessDogs acceptedSmoking not allowedFacilities for hearing impairedFacilities for visually impaired

Opening details

Alum works open 24 hours a day.
Visitor Centre open:
Ravenscar visitor centre open Bank Holiday Mondays. Last admission 30 minutes before closing.

Prices

Free entry

Contact

Steph Fidell

01723 870423

Address

Yorkshire Coast,
Ravenscar,
North Yorkshire,
YO13 0NE

Location

Directions

See location of Ravenscar Coastal Centre on Google mapsSee location on Google maps

Map reference: NZ 979016  Lat: 54.40046 Long: -0.49344

By Road:
Follow signs for Ravenscar from A171. The Alum Works is clearly signed once approaching the village of Ravenscar.

Public Transport Details
BUS - 115 Scarborough to Ravenscar; Esk Valley ( less frequent).

Parking: free

Facilities

  • Gift shopGift shop
  • National Trust PropertyNational Trust Property
  • Accepts groupsAccepts groups
  • Children welcomeChildren welcome
  • Disabled accessDisabled access
  • Dogs acceptedDogs accepted
  • Smoking not allowedSmoking not allowed
  • Facilities for hearing impairedFacilities for hearing impaired
  • Facilities for visually impairedFacilities for visually impaired