In 1974 the abandoned Middle Quarry was re-opened, producing architectural slab, and as an attraction to the public - the Gloddfa Ganol Mountain Center.

The centre offered guided tours of several miles of underground tunnels and chambers and was based in the old Middle Mill, which had been rebuilt for the purpose.

[3] He continued to purchase locomotives from across the United Kingdom, initially storing items at his house in Bampton in Oxfordshire.

[4] In 1976, Morris arranged to move some of his locomotives to Pen-yr-Orsedd slate quarry in North Wales where he planned to set up a museum to exhibit his collection and tell the story of narrow gauge industrial railways.

As well as Morris' collection, locomotives belonging to Pete Nicholson were moved from the Brockham Railway Museum near Dorking on 18 July.

[25] Rich Morris retained his collection of portable industrial monorail equipment, designed by Road Machines (Drayton) Ltd and used for construction projects in the mid 20th century,[52] along with the remains of the Gloddfa Ganol collection: Listers 39005 and 14005, one standard gauge Wickham trolley and Rail Taxi.