Conglog MINERAL Slate
Conglog YEARS_CONNECTED 1874-1920
[TABLECONTEXT] NAME Conglog
Conglog CLOSED 1920?
Conglog OPENED 1872
[TABLECONTEXT] [TITLE] List of quarries served by the Ffestiniog Railway
The Conglog quarry for slate mineral is opened in 1872 and closed in 1920 and is connected by the Ffestiniog Railway during 1874-1920