280 CONTRIBUTIONS TO ECONOMIC GEOLOGY. 1902. [bull 213 
extends up the valley of that stream. Attempts at coal mining havt 
been made on Minook Creek, near the mouth of Hunter Creek, but the 
workings have been abandoned and have since caved in, so that the 
thickness of the bed could not be determined. A sample taken from 
the dump of the old prospect shows the coal to be a glossy lignite, 
which tends to break up into small cubical grains on drying. The f 
analysis shows a fuel ratio of 0.87 and a water content of 11.21 per 
cent. Probably in freshly mined coal the water content would be 
much higher. 
Below Rampart. — A similar coal outcrops 2 miles below Rampart 
on the left bank of the Yukon. A sample from the dump of an old 
prospect showed upon analysis a fuel ratio of 0.86 and a water con- 
tent of 16.43 per cent. Between Rampart and the mouth of the Tan- 
ana two large areas of Kenai sandstone occur which have been 
reported to carry beds of coal, but so far as is known to the writer they 
have no commercial importance. 
Cantwell River. — On the Cantwell River, which is a southern tribu- 
tary of theTanana River, about 100 miles from its junction with the 
Yukon, Brooks reports a great thickness of lignite-bearing sandstones 
believed to be Eocene. At one locality about 50 to 60 feet of lignite is 
contained in fifteen different seams. The analyses of this fuel shows 
that it has a fuel ratio of 0.66 and a water content of 13.03 per cent. 
LOWER YUKON PROVINCE 
Palisades. — At the Palisades, a series of silt cliffs about 55 miles 
below Tanana, a number of beds of lignite are exposed in the face of 
1 he cliff. This lignite is of Pleistocene or late Tertiary age and occurs 
in beds often several feet in thickness. It is of inferior quality, being 
but little changed from wood or peat, and lias no economic value. 
Nohatatiltin. — The Nohatatiltin coal bed is situated on the right 
bank of the Yukon 55 miles above Nulato and about 760 miles below 
the international boundary. It is in sandstones containing fossils of 
Eocene age, which probably overlie conformably Upper Cretaceous 
rocks of the Nulato formation. Two beds of coal were examined and 
two others are reported to have been opened by prospectors. Owing 
to the disturbed condition of the sandstone it is not certain that these 
may not all be parts of one faulted bed. The largest bed seen has a 
thickness of 1 foot and is not. of commercial importance. The coal 
is a low-grade bituminous, having a fuel ratio 1.17 and a water con- 
tent 6.88 per cent. 
Pichart mine. — This mine is 10 miles above Nulato, on the right bank 
of the Yukon, and 425 miles from its mouth. The coal bed is con- 
tained in a typical exposure of the Nulato sandstone, from which 
Upper Cretaceous fossils have been obtained. One coal bed 30 inches 
thick and having a dip of 35° has been exploited. The coal is bitu- 
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