Great Mountain Colliery Company

The company formed in 1887 to open the Great Mountain slants at Tumble; recorded in 1896 as the Great Mountain Anthracite Collieries Company, and bought in 1924 by United Anthracite Collieries.

Also recorded as	Great Mountain Anthracite Collieries Company (as named in 1896)

Mines operated

Mine	Region	Years
Great Mountain Colliery	Carmarthenshire	1887–1924

Record created: 19 September 2026 · Last researched: 19 September 2026