54 LARAMIE BASIN, WYOMING. 
On Rock Creek the Diamond Cattle Company has an opening in 
sec. 7, T. 19 N., R. 78 W., in 6 feet of coal. The product in 1904 was 
200 tons, which sold at $2 a ton. 
Overlying the massive sandstone of Pine Ridge is a bed of coal 
which has been opened in a number of localities and at one place 
mined somewhat extensively. The easternmost opening on this bed 
is in the SE. \ sec. 7, T. 20 N., R. 75 W., on the continuation of Pine 
Ridge and just east of the old location of the Union Pacific Railroad, 
2 miles northeast of Harper. The coal bed is reported to have a 
thickness of 5 feet. Nothing could be learned as to the amount 
mined or the quality of the coal. 
Another bed of coal has been prospected a mile northwest of Har- 
per station at a horizon south of and several hundred feet above the 
Pine Ridge coal, but apparently the results were not satisfactory, 
for no mining was done. 
Coal outcrops at intervals along Pine Ridge west of Harper and at 
one time it was worked to a small extent in the SE. J sec. 16, T. 20 N., 
R. 76 W. Here the coal had about the same thickness and quality 
as in other openings on this bed. The dip in all the outcrops in this 
area is to the south at angles of 10° to 15°. 
Coal is exposed near the middle of the north side of sec. 21, T. 20 N., 
R. 77 W., dipping south at angles of 5° to 8°. It is more than 7 feet 
thick and appears to be a bright, clean coal. Apparently it is at a 
horizon several hundred feet below the coal bed in Pine Ridge. 
Coal is reported 1 mile farther north, in the bluff on the north side 
of Rock Creek, where it is associated with a heavy white sandstone 
which forms a short ridge similar to the main Pine Ridge. The beds 
here dip to the north, as they are on the north side of the Rock River 
anticline. This coal is believed to be at the same horizon as that in 
Pine Ridge. 
The following section is reported in a well on the Empire ranch, 
on Dutton Creek, in the NE. \ SW. \ sec. 27, T. 19 N., R* 77 W., put 
down for Judson Sutphin & Co. in 1889: 
Record of well at Empire ranch. 
Feet. 
Loose sand and gravel 43 
Soapstone, sand, and gravel in layers 10 to 25 feet thick (Tertiary) . 332 
Sandstone, with two small beds of coal 60 
Soapstone 45 
Sandstone 40 
Coal 8 
Sandstone 12 
Slate 4 
Coal 8 
Slate 2\ 
Coal 7i 
