B: Former Gas Works (2.6mb PDF) ​​​ ​​ ​​​​​​​​Link opens in a new window ​ ​
B: Hen Waith Nwy (2.1mb PDF)​​​​​​​​ ​ ​​​​​​​​Dolen yn agor mewn ffenestr newydd ​ ​