11. Several mineral lines radiated from the Coatbridge line to coal pits close to the line. 12. Britain had about 1, 000 working coal pits when the industry was nationalized in 1947. 13. Local mines included Scatton, Avon and Dyffryn coal pits as well as numerous drift mines. 14. From the wharf, a tramway crossed the Gwendraeth Fawr to connect with the coal pits . 15. John was a framework knitter from Coal Pit Lane. 16. The agent of Lord Granville's coal pits had his house ransacked and his office burnt. 17. A coal pit is marked at Old Rome in 1860, with miners rows and a school. 18. The wharf at its terminus was also served by a tramway connecting it to coal pits . 19. Three years later, the only remaining coal pit in the region was Maltby Colliery near Rotherham. 20. By 1821 there was a total of 41 coal pits on the Brymbo Hall estate alone.