Geological Map (1907) showing the location
of Crosskeys at the South Eastern edge of
the South Wales Coalfield and its situation
within the Risca Collieries Mining District.


Approximate locations of Collieries

1 Blackvein Colliery

2 North Risca Colliery

3 Nine Mile Point Colliery

The coal seams rise to the surface between Crosskeys
and Risca and it was here that some of the earliest
coal mines were located. Archived records show that
coal mining was carried out in this area from the
early 1700's

Thanks to Dr. P. J. Brabham - Geological Consultant -
(Cardiff University)

  Geological Map
Burnyeat and Brown Collieries Mining District Old Red Sandstone
Newport Abercarn Collieries Mining District Limestone
Cwmbran Collieries Mining District Penant Sandstone
Risca Collieries Mining District Millstone Grit
Boundary of Risca Collieries Mining District Lower Coal Series
  Alluvium
Rivers Railways