Wrexham's Croes Newydd locomotive shed was the last of the GWR 'northlight' designs, being a roundhouse and depending on a central turntable for access.
This was home to the town and surrounding area's rock salt store, as well as the grit spreaders that dispersed it in cold weather.
After sustaining damage from a minor fire in one of the buildings, the depot was closed and relocated to the nearby Wrexham Industrial Estate in 2009.
In the 2000s, the nearby Wrexham Maelor Hospital extended its car park onto the site of the marshalling yard to the west of the triangle.
Now that the shed and marshalling yard were gone, the only remaining features were the Croes Newydd North and South Fork signal boxes.