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Report – Mierystock Tunnel, Forest of Dean – November 2025
Visited: 08/11/2025
Posted by: [Forest of dean urbex]
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Intro
A quick stop at the old Mierystock Tunnel, tucked away in the Forest of Dean near the little hamlet of Mierystock. It’s one of the smaller Severn & Wye Railway...
Moseley Green Tunnel (503 Yards) Severn & Wye Rly.
Opened 1872 - Closed 1951
The Severn & Wye Railway was authorised by an Act of Parliament in 1809 and opened the following year as a horse-drawn tramway. In 1865 five locomotives were purchased and the route was mostly converted to broad...
Visited with the help of @Lord Oort, it looks easy access until you get there and realise its a tricky one.
Completed in 1810 and at the time this was the longest tunnel in the world, Roger Tipping who bored the tunnel was later chosen to bore the first tunnel under the river Severn in 1812...
Visited with my father @Bertie Bollockbrains
Hawthorns Tunnel, also known as Euroclydon Tunnel after the large house built on the grounds above it, is an S-shaped 638-yard long tunnel built for the Mitcheldean Road & Forest of Dean Junction Railway which was completed but never fully opened...
I'm surprised this tunnel hasn't had more reports on it over the years considering what's inside! It has an interesting history as well. It appears to go by a few names too, the most used being Hawthorns, although it's also referred to as Euroclydon and Puddlebrook Tunnel.
The History
One of...
Whitecliff Tunnel
Whitecliff tunnel near the town of Coleford located in the Forest of Dean, Gloucestershire was part of the Coleford Railway from 1883 to 1917 and the Severn and Wye Railway from 1917 until its closure in 1976.
Very little available online in regards to the tunnel but after...
Last month my boss said "can you pop to Cardiff to do a quick job" sure Ill go early & spend the rest of the day mooching & this was on the way back!
Hawthorns Tunnel, also known as Euroclydon Tunnel after the large house built on the grounds above it, is a 638-yard long tunnel built for the...
Hi all, new here so this is my first actual thread (apart from the newbie intro one). Got it on Pine End Works in Lydney. Unfortunately i havent been able to explore it since 2018, but i do have some images i would like to share and also give an update which has only happened 2019/2020, so just...
Disclaimer; This is not as exciting as it sounds :D Trust me...
Disclaimer 2; I've called report this Ensors abattoir because on Google Maps, if you go and stand outside, that's what it says the place is called! However I'm not entirely sure...
History;
Lets assume this place used to belong to...
Mierystock Tunnel
The Explore
Mireystock is a lovely little tunnel and is one of my favourites as it has a very high eliptical shape throughout. It has some interesting calcite deposits in a couple of places and has a nice bend in it about halfway along. A great way to spend a chilled...
Having seen the most excellent report by Mr. @Bertie Bollockbrains from the Brecon Beacons, I was partly (read fully !) inspired to try something similar. Bixhead Stone Mine isn't a part of that but as we just happened to be walking past it, we decided to go down to the entry point as rumour had...
History
The engineering company J.E. Billups of Cardiff who also constructed Mireystock Bridge and the masonry work on the Lydbrook viaduct commenced construction of the tunnel in 1872 using forest stone. The tunnel is 221 metres in length and took 2 years to construct. The tunnel allowed the...
Great explore today around the Lydbrook Cable Works, stumbled across it while walking, still researching more into it, but so far it seams that;
it was a small factory up until the war, where it grew massively, then sometime in the 1980's closed down, and has stayed abandoned since then...
Hello :) This will hopefully be my first of many reports to come, hope it's suitable.
Background (ripped straight from wikipedia)
"In 1912 Harold J Smith purchased land at Stowfield and erected the Lydbrook Cable Works. The First World War provided a number of contracts with employee numbers...