OF ARKANSAS. 43 
an average of a large proportion of that part of Izard county, lying north- 
east of White river, and between that stream and Strawberry river. 
Between Calico and the North Fork, the white and yellow sandstone 
occupies, for the first 8 miles, a position towards the summits of the ridges. 
Its upper layers are generally coarse-grained, and present glistening 
reflections. This sandstone is underlaid by the cherty limestones which 
form the varigated cliffs on White river, known by the name of the “Calico 
Pock.” [See plate No. 2.] 
Six miles from Calico, on the road from Calico to the North Fork, the 
plateau of sandstone, from which sketch No. 1 was taken, is at an eleva- 
tion of 380 to 390 feet above White river. 
At the widow Lafferty’s farm, where a soil was collected from Izard 
county, for chemical analysis, the sandstone is overlaid by limestone. 
In the vicinity of Friend’s creek, the sandstone becomes harder and 
more charty; it may be designated there, a porous and cellular, cherty 
sandstone. 
{ passing over the ridges about Friend’s creek, a high knob is seen off 
towards the south, known by the name of “ Naked Joe.” This hill ap- 
pears to be some 150 to 200 feet higher than the main ridges of the country, 
and formed a conspicuous land-mark, in early times, for the guidance of 
hunters and explorers. 7 
The country around Friend’s creek, where there is so much cellular 
chert on the surface of the ground, has much the aspect of the iron region 
of south-western Kentucky, and though no body of iron ore has yet been 
discovered on the waters of this stream, the detailed survey may, perhaps, 
hereafter develop such. 
Four miles before reaching the North Fork, the ridges at the same ele- 
vation (i.e., 880 to 390 feet) as the sandstone platform, 6 miles from Calico, 
are composed of cellular buhrstone chert. 
The summit level, passed over about 3 miles before reaching the North 
Fork, and where the descent to that stream commences, is about 445 feet 
above Major Jacob Wolf’s house, and 537 feet above the North Fork, ac- 
cording to observations taken with the aneroid barometer. 
Beyond the North Fork, there is another high conspicuous hill, towering 
above the rest of the main ridges, called “‘ Mattener’s Knob,” which I was 
told by Maj. Jacob Wolf, was reported by surveyor Smith, to be 1,100 feet 
high. 
Maj. Jacob Wolf reports a small piece of ore, found in digging the 
foundation of a mill, near the North Fork, which was pronounced to be 
silver ore by some one, who professed to have examined it, but whose 
name I did not learn. I have little faith in silver occurring in the forma- 
tions which prevail along the North Fork, towards its confluence with 
