64 
COAL RESOURCES OF THE YUKON, 
[no. 21S. 
Comparison of average analyses of coals from Yukon River, southern Alaska, British 
Columbia, and Pacific coast. 
Average composition of 9 Yukon River 
lignites 
Average composition of 9 Yukon River 
bituminous coals 
Average composition of 5 Cook Inlet 
lignites « 
Average composition of 4 Alaska Pen- 
insula coals a 
Composition of Lisburne coal & 
Average composition of 3 coals from 
vicinity of Controller Bay a 
Average composition of 15 Vancouver 
Island coals, chiefly from Nanaimo 
and Comax « 
Average composition of 10 standard 
coals from the State of Washington c . 
Moisture. 
11.89 
4.69 
11.59 
2.05 
3.75 
.76 
4.43 
Volatile Fixed 
matter. carbon. 
41.11 
32.05 
49.03 
39. 23 
43.75 
13.42 
30.33 
31.60 
40.82 
55.89 
31. 64 
49.92 
47. 39 
81.68 
60.23 
56.01 
Ash. 
6.20 
6.97 
7.73 
8.77 
5.11 
4.12 
9.44 
7.45 
Fuel ratio. 
0.89 
1.85 
0.64 
1.27 
1.08 
6.06 
1.77 
a Brooks, A. H., Coal resources of Alaska: Twenty-second Ann. Rept. U. S. Geol. Survey, pt. 3, 1902, 
p. 552. 
blbid., p. 566. 
cSmith, G. O., Coal fields of the Pacific coast: Twenty-second Ann. Rept. U. S. Geol. Survey, pt. 3, 
1902, p. 490. 
SUMMARY. 
CHARACTER AND VALUE OF YUKON COALS. 
The coals that have been mined in the Yukon Basin are high-grade 
lignites and rather low-grade bituminous coals. With the exception 
of that at Nation River all the coals examined in the Circle and Ram- 
part provinces are lignites, or at least lignitic, those of the Circle 
province probably being of a little higher grade than those of the 
Rampart province. All the coals examined in the Nulato province 
fall within the bituminous grade. 
In the Circle province the best coal by proximate analysis is that 
mined a few years ago at Nation River. This is a bituminous coal 
rich in hydrocarbons and having a low percentage of water and ash. 
Its percentage of sulphur, however, is higher than that of any other 
coal examined b}^ the writer, and the supply is limited and uncertain. 
Some rather low-grade bituminous coal, with a high percentage of 
ash, has been mined at the Five Finger mine, on Lewes River, 200 
miles above Dawson and beyond the limits of the Circle province. 
The main coal supply of this province, however, is to be found in the 
lignite-bearing areas. At Cliff Creek, in Canadian territory, these 
lignites have been developed and yield an abundant supply of coal 
which gives good satisfaction for steaming purposes. The limits of 
