Joseph Treffry completed the viaduct in 1842 as a convenient route between the coast and high ground where he owned land and mineral setts.

The Luxulyan Valley is classified as a County Wildlife Site

The valley is also known for its picturesque qualities and ecological interests which have been long recognised.

The Wheelpit originally had a 30-foot diameter water wheel supplying power to a cable mechanism for hauling wagons up the Carmears Inclined Plane.

Much of the valley is covered in dense woodland, with rich ecological diversity and tranquil beauty.

Welcome to The Friends of Luxulyan Valley

Luxulyan Valley is a beautiful wooded valley in mid Cornwall through which runs the river Par. It was designated as part of the Cornwall and West Devon Mining Landscape World Heritage Site in 2006 for the fascinating early 19th century industrial remains that can be found throughout the area. 

The Friends of Luxulyan Valley are a group concerned with the conservation of the Valley. We were established in 1997 and have links with  Cornwall Council and the Footpath Committees of Luxulyan and Lanlivery parishes. We are also members of The Conservation Volunteers. Our objectives are to promote, preserve and protect the valley. 

You can help us by joining the Friends to keep this treasure for future generations; individual membership costs just £8 per year, joint membership £10 and family membership £12. Members get a quarterly newsletter and free entry to most of our events

What's new

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News from ranger Chris after the storms

30 Jan 2026

There is another tree down at ponts mill, hopefully this will be cleared next week.

The trees on the lower path have been cleared.

The path at ponts near the first bridge has started to erode due to the river coming up, I will monitor this and will arrange for it to be repaired.

14 Jan 2026

The bridge at blackhill carpark is being replaced, the team have started this week. Apologies about the sort notice, I knew it was due to be done but did not have a date.

There is a temporary bridge next to it for the public to use. There are a couple of trees down on the lower tramway, the largest one you can go through the kiln store to avoid it.

I will get this cleared but it may take some time as there are so many trees down across all the sites.

The lower path is currently blocked with a large beach tree, I will get this cleared even it is just to make a gap to be able to get past

 

We have had a few section of the leat bank collapse near the blackhill car park. A safety barrier is up and I am awaiting for a team to view it, I will keep you updated

Vandalism in the valley

Vandalism in the valley

Unfortunately, we have had more vandalism in the valley,

this time around the wheel pit.

Boards and signage were deliberately damaged

 Please could you let me know if you see anything/anyone that might cause concern re potential vandalism, and I will forward on to the appropriate person in the council

 

Robin Stephenson

Our Valley Needs You.

 

The Friends of Luxulyan Valley are looking for volunteers to help strengthen its Board of Trustees.

We would be happy to hear from anyone interested in ‘getting involved’ in the promotion, conservation and preservation of the Luxulyan Valley, safeguarding its flora, fauna, historic artefacts and unique atmosphere, whilst still providing a place of rest and relaxation.

Please get in touch via the ‘Contact us’ facility on this website for more information.

Our new 2022 Valley Guidebook is here!

The long-awaited Friends of Luxulyan Valley’s 64-page souvenir guide to the Valley is now available to buy online or in local shops. Our new edition includes an A4 colour map of the area and is packed with photographs old and new in full colour throughout. The story charts the history of the Valley from Medieval times to its zenith during the Age of Enlightenment, when the ingenuity and ambition of one man created an industrial powerhouse, the remaining structures and landscape of which has earned the Valley its World Heritage status.

Our guide also provides information on common flora and fauna that might be seen when visiting, with numerous recommended walks to help readers discover the many historic and natural wonders of the Valley for themselves.

See our Shop page for more details. 

Upcoming events

12 Feb

Volunteer day - Luxulyan Valley

Thu 12th Feb 2026, 9:30am to 3:00pm

Luxulyan Valley Thursday 12th February 9.30am – 3pm

 

Wheelpit area, we will be tidying around the wheelpit and continuing with clearing the drains on the old tram line.

 

Meet 9.30am at the wheelpit

SX06580 56707.

W3W simulates.vegetable.shade

 

 

17 Feb

Cornwall Heritage Trust - Nature Discovery Day

Tue 17th Feb 2026, 11:00am to 2:00pm

 
‘Signs of Spring’ Nature Discovery Day
Tuesday 17th February
11am – 2pm
 
Cornwall Heritage Trust is hosting a free Nature Discovery Day at Treffry Viaduct this February half term, and invites everyone to join them.
 
Location: Treffry Viaduct, St Austell, PL26 8YE – What3Words: ///routs.overhaul.indicate
 
Parking: Black Hill Car Park, Luxulyan, St Austell, PL26 8YE – What3Words: ///coverings.shots.sticks
 
Price: FREE
 
Visitors will have the chance to spot the signs of Spring at this 19th-century architectural wonder hidden in the beautiful Luxulyan Valley near St Austell. 
 
Once a hive of industrial activity, nature has reclaimed this fascinating historic place and there is a wealth of wonderful wildlife for you to discover there. 
 
There’ll be lots to get involved with, including bird identification, seed planting and storytelling. 
 
There’s no need to book and you don’t need to be members. Just come along and enjoy!

View all events

Interactive map

Learn more about the Valley and plan your trip with our interactive map.