Western Mostyn Colliery Company
They were the second company to attempt borings at the site, after the Prestatyn Coal Company tried in 1865.
A shaft 100 yards (91 m) deep was sunk; however, the heading that was driven from this shaft hit a fault and the project was abandoned once more.
- "Point of Ayr Colliery". Welsh Coal Mines. Retrieved 2007-12-02.
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