OCCURRENCE OF COAL. 81 
been prospected and little is known of it for several miles. The 
coal outcrops high up in the face of the cliffs and the lower bed is 
more accessible. 
There are two small openings on the lower coal west of the Farmers 
mine, which are known as the Excelsior and Corcoran mines. The 
Excelsior mine (No. 15) is located high up a hillside, near the head 
of a small gulch, where the coal is opened along the outcrop at several 
places. Here 4 feet 7 inches of coal is exposed at the entrance to 
the workings. Four feet above there is a 4-inch bed, and a foot and a 
half below there is 2 inches of coal, while 40 feet below the main coal 
there is an unprospected bed of coal and carbonaceous shale 6 feet 
thick. A mile west of the Excelsior mine there is a small abandoned 
prospect known as the Corcoran mine (No. 16). The workings have 
caved, but there is at least 4 feet of coal exposed near the entrance. 
For 5 miles northwest of the Corcoran property little or no pros- 
pecting has been done, but at the next wide valley there are pros- 
pects on two beds of coal. An opening on the lower bed shows 
the following section: 
Section of axil bed 5 miles northwest of Corcoran mine. 
Sandstone. Ft. in. 
Shale 6 
Coal 3 
Bone 4 
Coal 2 
Shale 4 
Sandstone. 
Total coal bed 5 4 
Farther up the same valley an upper coal is well exposed and 
has been worked at the Hunter mine (No. 17), where the following 
section was obtained: 
Section of coal beds at Hunter mine. 
Sandstone. Ft. in. 
Coal 2 
Bone 4 
( loal 4 5 
Bone 8 
Coal 7 
Sandstone 25 
Coal 2 
Bone 1 
Coal 3 
Sandstone. 
3!) 
The Gross or Kiel mine is situated 5 miles northwest of the Hunter 
property, near the mouth of Kiel Canyon. Between these mines 
no prospecting has been done and no information was obtained 
regarding the coal beds. At the Kiel mine (No. 18) from :i feet t<> 
3 feet 9 inches of coal is exposed at the approximate horizon of the 
lower bed. 
