C.G. Slate Company

The C.G. Slate Company is quarry mining business.

In 1959, the Crovan's Gate Mining Company sold them the Crovan's Gate Mines when they moved to the Skarloey Railway Slate Quarry. In 2010, the C.G. Slate Company had the Blue Mountain Quarry built for them. So they sold the Crovan's Gate Mines back to Crovan's Gate Mining Company after the Skarloey Railway Slate Quarry was closed.