These cookies are absolutely essential for our website to function properly.
We use Google Analytics to measure how you use the website so we can improve it based on user needs.
These cookies may be set by third party websites and do things like measure how you view YouTube videos.
Dinorwig Quarries Notice / Chwarelau Dinowig Rhybudd. A bilingual (English on left, and Welsh on right) danger notice issued by the Dinorwig slate quarries for the safety of the workers. The sign states that blasting operations commence at 9 am, 11am, 12 noon, 12.55 pm, 3 pm and 4 pm.
