70 ALASKAN MINERAL RESOURCES IN 1905. 
Section in opening 50 feet below the section just given. 
Shale roof. Ft. in. 
Coal, impure 3 
Coal a (good and hard) ' 2 10 
Shale floor. 
Strike N. 82° E., dip 38° NW. 
Numerous outcrops of anthracite (mostly poorly exposed) were seen on the banks of 1 
Canyon Creek for a distance of 2 or 3 miles below the glacier. The following sections repre- 
sent the best of these outcrops: 
Section at source of Canyon Creek {west bank). 
Feet. 
Coal 5 
Section on west bonk of Canyon Creek, 500 feet below glacier. 
Feet. 
Coal 3 ] 
SEMI ANTIIR ACITi: OK SEMIBITUMINOUS, 
The valley of Clear Creek contains many good outcrops of coal. The following sections 
represent a very small part of the exposures and openings: 
Section in stripping <>n northwest bank of Clear Creek above fall*. 
Feet] 
Coal 47 
Section in stripping south of the one given above. 
Feet. 
Coal 31 
Section in opening at foot of Clear Creek falls. 
Feet. 
Coal 16 
Strike N. 65° E., dip 19° NW. 
Section of coal 2.9 miles above mouth of Clear Creek. 
Keel. 
Sandy shale 3 
Coal 4 
Sandy shale floor. 
Strike N. 90° E., dip 67° N. 
This is the lowest coal exposed in the region. There is an intrusive mass in very close 
proximity to the coal, but it does not seem to have altered it. 
Several workable seams are exposed on Trout Creek. The following sections, arranged in 
stratigraphic order, beginning with the highest, were measured. 
Section in tunnel on Trout Creek opposite house. 
Shale roof. feet. 
Coal b 8 
Shale floor. 
Strike N. 85° Vv'., dip 28° \ E. 
Section in tunnel 500 feet below house on Trout Creek. 
Ft. in. 
Coal I 6 
"Included in sample No. 9, p. 74. b Included in sample No. 10, p. 74. 
