32 THE BOOK CLIFFS COAL FIELD. 
The next opening is about a mile and half west of the Kiel, at 
the Nugent mine (No. 19). Here there are two openings on the 
lower (?) coal, on opposite sides of a gulch. The coal varies in thick- 
ness from 4 feet 3 inches to 4 feet 8 inches. 
At the Nearing mine (No. 20), three-quarters of a mile west of the 
Nugent, the same bed is also worked. At the mouth of the mine 
the coal measures 4 feet to 4 feet 2 inches and contains a variable 
streak of bone up to 12 inches thick. At the end of the workings 
the bone disappears and the coal measures 4 feet 7 inches. The 
coal bed is here 45 feet above the top of the Mancos shale, and in 
this general vicinity the upper coal appears to be represented by 
only thin carbonaceous layers. Only one workable coal bed has 
been found in this locality. The following section was measured 
near this mine: 
Section of coal-bearing rocks near Nearing mine. 
Ft. in 
Sandstone, buff 40 
Shale, drab , L0 
Sandstone, red 10 
Shale, carbonaceous I (i 
Shale, buff 14 
Coal 8 
Sandstone, buff ~ 
Shale, buff 30 
Shale, carbonaceous I 
Sandstone, white and buff 33 
Shale, carbonaceous <> 
Sandstone, white 18 
Shale, carbonaceous 10 
Coal, bony 8 
Sandstone, whil e L5 
Shale, sandy 60 
Sandstone, whil e 25 
Shale, buff 30 
Shale, carbonaceous 2 6 
Shale, buff 10 
Coal 6 
Sandstone, while .'. 10 
Shale, buff 7 
Sandstone, buff 15 
Shale, carbonaceous 8 
Coal 2 
Shale, carbonaceous '. • 2 6 
Shale, buff 10 
Sandstone, buff 7 
Shale, drab 15 
Sandstone, buff 1 8 
Coal 4 
Shale, carbonaceous and drab 11 
Sandstone, buff 10 
Shale, drab 4 
Sandstone, buff 20 
Shale, Mancos. 
439 2 
