A. Guyot on the Appalachian Mountain System. 175 
Grandfather Mountain, - the sources of the Yadkin and 
Watauga rivers, measures 5897 feet. 
The High. Pinnacle, a wit touches the Black Monstais. 5699 “ 
Great Hogback, at the sources of the Tuckasegee,-  - 4792 “ 
White-Side, near the sources of the Chatooga, - - 4931 8 
Mud Creek Bald, near the head of Little Tennessee, lies oe 4705 * 
Tray Mountain, in de od at - sources * ct 
River. - 4426 « 
Virtheoncns the transverse on eg in North Carolina 
unite the two principal chains, and the interior isolated groups 
in which the highest summits are found, present altitudes in- 
bes easing as they proceed, culminating, however, more towar 
ti rth. 
Roan Mountain, High Knob, which joins the Iron moun- 
tain chain on the east, 6306 feet. 
Black Dome, or Mitchell’s High Peak, the culminating 
point of the Appalachian System, - 6107. * 
Richland Balsam, in Big Pigeon Valley, - - - 64295 * 
Amos Plott’s Balsam, in Tuckasegee v ae. 
‘ellow Mountain, Cowee Chain, between the boric hi 
nd Little Tennessee valle eys, 
Standing Tada highest point in the Nantihala chain, 5518 
Fodders’ B ald, in Hiwassee valley, Georgia, = - aco) * 
e law of general increase of altitude towards the southwest 
in all parts of the Appalachian system, is thus fully established ; 
but it is to be remarked that the different elements of which it 
is coniposed do not arrive to their maximum of altitude in the 
same locality nor in the same latitude. The bottom of the Great 
valley oe i its greatest elevation near the sources of the Hol- 
ston, at about 87° N. lat. The mass elevation, or ow eee 
4 
SESE AIL aot ht Bees tet ery MONE ME CARER a Ste SR oer we 
citadel which i 
~ lachian systen a: 
To complete this brief review I ought to add stat increas- 
; ing altitude towards the south which is Ee are in in the 
3 mountain zone of the Alleghanies, is scarcely observed in the 
