Joined Ordnance Survey Plans Showing Geological Levels, Geological Faults, Coal Veins and some Estate Boundaries from Ystradgynlais and Ystradfellte, extending to Glyncorrwg

Scope and Content

Geological Survey Ordnance Survey Sheets, 1921 edition, 6 Inch Sheets. The plan consists of the the following Ordnance Survey Sheets joined together: Glamorgan Sheets 4, 10 and 17. The plan is annotated '9' on verso relating to a key on the verso of plan DNCB/6/14/1/16/9/2. The plan includes the following places: Glyncorrwg, Resolven, Blaengwrach, Blaenrhondda, Rhigos, Ystradgynlais and Ystradfellte. Scale 1:10560.

Custodial History

Previous reference number: DNCB/76/4