Mountain Ash Colliery 0-6-0ST No. 'Sir John'
Blaenavon, Monmouthshire, UK 		Location: Pontypool & Blaenavon Railway
Status: Cosmetic Restoration
Posted: Sep 2, 2026 @ 08:09:40 by Russell Newman
The ex Mountain Ash Colliery, Avonside built 0-6-0ST Works No. 1680 "Sir John", is having a cosmetic makeover and repaint for it to be on display during the Industrial Steam of South Wales II Gala from the 25th to 27th of September 2026, at the Pontypool & Blaenavon Railway (Blaenavon’s Heritage Railway).
Posted: Mar 11, 2018 @ 13:03:48 by Russell Newman
The current location of former Mountain Ash Colliery Avonside built 0-6-0ST "Sir John" is the Pontypool & Blaenavon Railway in Monmouthshire. Where the loco is currently in storage there awaiting overhaul.
Posted: Apr 9, 2015 @ 14:04:03 by Mark Vrettos
Sir John moved to the Pontypool and Blaenavon Railway on Thursday 9th April. The loco will undergo a full survey with a view to restore to passenger carrying condition. Parts are now being sought to help put it back into traffic.
Posted: May 22, 2013 @ 11:05:16 by ian
build date 1914.