Plan showing colliery workings in the areas surrounding Gelli-Haf, Bryn, Pen-llwyn-fawr and Gelli-Groes

Scope and Content

Maes-y-cwmmwr is shown on the plan. No colliery or colliery company has been identified. The plan is undated. Scale 1:2500.

Administrative / Biographical History

This plan comprises the following annotated Ordnance Survey Sheet(s): Glamorgan Sheet 20.14 (first edition).

Custodial History

Previous reference number: DNCB/75/2