42 COAL RESOUKCES OF THE YUKON. [no. 218. 
near the southern end. The} r consist of almost incoherent sands and 
gravels. 
Fossil leaves collected in the bluff along the Yukon above the mouth 
of Minook Creek were assigned by Knowlton to the Kenai series rep- 
resented at the Drew mine, and the rocks are, therefore, probably 
continuous between the two points, though this connection has not 
been established b} T actual observation. The lithologic character of 
the Minook beds differs widely from that of the sandstone at the Drew 
mine, and without the fossil evidence would suggest that they belong to 
a younger horizon. At both localities the coal-bearing sandstones rest 
un conformably on rocks belonging to the Rampart series. Impure 
lignites occur in these sandstones at several points above Rampart. 
On Minook Creek about 2 miles from the town of Rampart these 
lignite beds are reported to have occasionally been on tire. Attempts 
have been made to open a coal mine at the latter place, but Mr. Paige, 
of the Geological Survey party, who visited the locality, reported that 
the workings had caved in, so that the thickness of the bed could not 
be determined. A sample of the coal was taken for analysis from 
the dump of the old prospect hole. 
The coal is a glossy lignite which tends to break up into small cubi- 
cal grains on drying. The analysis is as follows: 
Analysis of coal ( No. 310) from junction of Hunter and Minook creeks. 
[Analyst, E. T. Allen, V. S. Geol. Survey.] 
Per cent. 
Water 11. 21 
Volatile combustible matter 44. 32 
Fixed carbon 38. 64 
Ash 5.83 
100.00 
Fuel ratio 87 
The percentage of water in freshly mined coal from this locality 
would probably be considerably higher than the analysis shows, since 
the sample analyzed had lain out on the dump all summer and was very 
much checked up by diwing. Samples of coal from this locality have 
been tested for heating purposes by the miners at Rampart, and are 
reported to have been rather unsatisfactory in that the coal needed 
a certain amount of wood mixed with it to make it burn well. 
Two miles below Rampart, on the left bank of the Yukon, a similar 
coal outcrops. This has been prospected to some extent, but the 
workings are at present abandoned and the tunnel has caved in. A 
sample taken from the dump of the old tunnel showed physical char- 
acters similar to that from Minook Creek. 
