GLACIAL BOUNDARY IN OHIO. 765 
separated it from Mud river, it sent an arm across to the Ohio by way 
of the Guyandotte, 50 miles below, where the other arm and main 
stream reached the same river at the present mouth of the Kanawha, 
thus converting portions of Putnam, Mason, and Cabell counties into 
a large triangular island, the base of which was formed by the swollen 
Ohio, and the sides by the two arms of the Great Kanawha. The melting 
away of the Cincinnati dam withdrew the water from the western or 
Mud-Guyandotte arm of the Kanawha, leaving the abandoned valley 
high and dry, but littered up with transported trash as we now see it, 
while the Kanawha continued on to the Ohio in its present and pre- 
glacial outlet. ) 
A recent visit to Ashland, in Boyd county, Ky., revealed the fact 
that what had been reported as glacial deposits at that point closely 
correspond to those just described by Prof. White in the deserted river 
channel between the Kanawha and the Guyandotte. Through the kind- 
ness of Mr. John Campbell, of Ironton, O., and Mr. John Means, of Ash- 
land, I was conducted over the ground, and it appears that all the way 
from Ashland to Greenup Court-house, and back from one to three 
miles from the river, on the Kentucky side, there is a deserted river 
valley about 220 feet above the present flood-plain. This level of 220 
feet is very constant, and the hills rise on either side of it about 250 feet. 
When standing on one side of this old valley and looking across m6, The 
is sometimes difficult to dispel the illusion that you are looking across 
the present valley of the Ohio. The valley goes by the name of “The 
Flat Woods,” and may well be considered a continuation of the 
Kanawha-Guyandotte valley just described by Prof. White. : 
The deposits which had been attributed to glacial action, consist of | 
numerous pebbles from a small size up to 18 inches in diameter, and 
occasionally one that is 23 or 3 feet through. The material is uni- 
formly quartz or flint; no granite pebbles are to be found, and all of it 
_may well have been brought down the valley of the Kanawha by or- 
dinary river action. No such pebbles are found upon the adjoining 
hills, and according to Mr. John Campbell, who is at once a competent 
observer and perfectly familiar with the region, nothing of the kind is 
to be found in Lawrence county, O.; thus demonstrating that this is 
entirely south of the glaciated area, and that the deposit is due in some 
manner to a former higher stage of river action. 
