583 
Millstone Grit ranges beyond, where no further beds of 
coal are found, excepting a few poor worthless seams, rise to 
elevations of from 1,000 to 1,900 feet. 
In passing, then, from the magnesian limestone to the 
Millstone Grit, we traverse over the various mineral beds 
of the district, as they successively rise one from beneath 
the other. We have in this sketch little more than an 
enumeration of their names and the number of the principal 
workings in each. In the first place the thin beds of Upton 
rise from under the limestone, then the workable beds of 
Nostel, Crofton, Shafton, and Cudworth. 
The Wath Wood, wrought about Melton ; the Wood 
Moor, worked near Chapelthorpe and at Smithies, averaging 
three feet in thickness ; the Beamshaw Coal, about two 
feet eight inches ; the Mapplewell or Kents Thick, in some 
places three feet, but varying in different localities, as 
several other beds do. Then comes the Barnsley Bed, the 
thickest by far of the series, averaging nine feet, and having 
from twenty to twenty-four busily working mines on various 
points of its extent. Then comes the Swallow Wood Coal, 
about three feet, worked on the Dodworth Road ; next rise 
in succession a series of beds, not much worked in this part, 
called by various names in different localities, as the Lidgett 
Coal ; the Joan Coal ; the Flockton Coal, one bed of which 
is worked at Higham ; then the Park Gate Coal, four feet, 
worked at Higham ; Silkstone Fall ; Silkstone Common, 
at Stainbro' Colliery, No. I shaft ; at Wharncliffe and 
Silkstone Colliery, No. 1 shaft ; the deeper shafts at 
both places working the celebrated Silkstone Coal. Next 
is the Silkstone four feet coal, then the Silkstone Main 
Bed, five feet, worked in about sixteen different mines 
in this neighbourhood. Below this is the Whin Moor 
bed, worked at Silkstone Common and Thurgoland, three 
feet in thickness. 
