4,o Mr. Mills's mineralogical Account of 
the mountain by springs, which uniting with the former, be- 
low their junction the gold has been found. The smaller have 
not water sufficient to wash away the incumbent clay, so as to 
lay bare the substratum ; and their beds only contain gravel, 
consisting of quartz with chlorite, and other substances of 
which the mountain consists. The great ravine presents a 
more interesting aspect ; the water in its descent has, in a very 
short distance from the bog, entirely carried off the clay, and 
considerably worn down the substrata of rock, which it has 
laid open to inspection. 
Descending along the bed of the great ravine, whose general 
course is to the eastward, a yellow argillaceous shistus is first 
seen ; the laminae are much shattered, are very thin, have a 
slight hade to the SSW, and range ESE and WNW. Included 
within the shist, is a vein of compact barren quartz, about 
three feet wide, ranging NE and SW ; below this is another 
vein, about nine inches wide, having the same range as the 
former, and hading to the northward, consisting of quartz, 
including ferruginous earth. Lower down, is a vein of a com- 
pact aggregate substance, apparently compounded of quartz, 
ochraceous earth, chert, minute particles of mica, and some 
little argillite, of unknown breadth, ranging E and W, had- 
ing fast to the southward, and including strings of quartz, from 
one to two inches thick, the quartz containing ferruginous 
earth. The yellow argillaceous shistus is again seen with its 
former hade and range ; and then, adjacent to a quartz vein, is 
laminated blue argillaceous shistus, ranging NE and SW, and 
hading SE ; which is afterwards seen varying its range and 
hade, running ENE and WSW, and hading NNW ; lower 
down, the blue shist is observed more compact, though still 
