208 DEFENSIVE ENCLOSURES. 



hill a little below the brow ; but at some places it rises, so 

 as to cut off the narrow spurs, and extends across the neck 

 that connects the hill with the range beyond." It must not, 

 however, be understood that anything like a true wall now 

 exists ; the present appearance is rather what might have 

 been "expected from the falling outwards of a wall of stones, 

 placed, as this was, upon the declivity of a hilL" Where it 

 is most distinct it is from fifteen to twenty feet wide, by 

 three or four in height. The area thus enclosed is about 

 one hundred and forty acres, and the wall is two miles and a 

 quarter in length. The stones themselves vary much in size, 

 and Messrs. Squier and Davis suggest that the wall may 

 originally have been about eight feet high, with an equal 

 base. At present, trees of the largest size are growing upon 

 it. On a similar work, known as "Fort Hill/' Highland 

 County, Ohio, Messrs. Squier and Davis found a splendid 

 chestnut tree, which they suppose to be six hundred 

 years old. "If," they say, "to this we add the probable 

 period intervening from the time of the building of this 

 work to its abandonment, and the subsequent period up to 

 its invasion by the forest, we are led irresistibly to the con- 

 clusion that it has an antiquity of at least one thousand years. 

 But when we notice, all around us, the crumbling trunks of 

 trees, half hidden in the accumulating soil, we are induced to 

 fix on an antiquity still more remote." 



The enclosure known as "Clark's Work," in Ross County, 

 Ohio, is one of the largest and most interesting. It consists 

 of a parallelogram, two thousand eight hundred feet by 

 eighteen hundred, and enclosing about one hundred and 

 eleven acres. To the right of this, the principal work is a 

 perfect square, containing an area of about sixteen acres. 

 Each side is eight hundred and fifty feet in length, and in 

 the middle of each is a gateway thirty feet wide, covered 

 by a small mound. Within the area of the great work are 



