96 ALASKAN MINERAL RESOURCES IN 1905. 
Section in bluff on west haul- ofEsJca Creek, elevation 1 ,030 feet. 
Ft. in. 
Sandstone l. r > 
Coal 2 
Shale 15 
( loal 3 
Shale 3 
Coal 3 
Concrel ionary shale 6 
Black shale 5 
Coaly shale 1 
Sli;ily coal f> 
(nil 9 
Shale with some coal 
Coal 2 
Shale 1 
Coal. 1 
Shale l 
Coal l 
ShaJe 2 
Coal l 
Shale L2 
Coal 1 
Shale 2 
Coal l 
Shale 10 
Strike \. 10° W. (magnetic), dip t0° SW. 
A fault cuts this bluff. 'Flic section was measured above it. Below it the strike is north- 
cast, and the dip southeast. 
The following measurements were made on Tsadaka ( !reek: 
Section of coal ru <u upper < nd of Tsadaka < f r< < /• gorge, elevation 700 feet. 
Ft. in. 
Fissile black shale 1 
Carbonaceous shale 6 
Sandstone 2 
Coal 2 
Sandstone 1 
Bright coal a 2 4 
Shale 
Bright coal a 2 
Dull coal" ] 2 
shale 4 
1 hill coal 1 
Shale 1 
Massive sandstone f> 
Strike N. 20° W„ dip 24° NE. 
Section on east bank of Tsadaka Creek, about !<><> yards below upper cabin, elevation 780 feet. 
Ft. in. 
Coal with hard ferruginous inclusions 3 
Shale 2 
Coal (bright) b 4 
Shale 
Coal (bright and hard )>•..- 7 
Soft shaly coal 1 
Soft shale with abundant iron balls 80 i 
Massive sandstone 1 o i 
Strike \. 50° E., dip i:; NW. 
A westward extension of the coal is reported on Little Sushil na River, but that region was 
not visited by the writer. The coal is said to occur in thin beds and to be lignite, hut it ia 
not known whether it is a true lignite or a low-grade bituminous coal like that on Eska and 
Tsadaka creeks. 
"Included in sample No. 20, p. 99. ''Included in sample No. 21, p. 99. 
