W R K S O F D E F E N f ; E , . 33 



county, Kentucky. It is situated on one of the bluffs of the Rolling Fork of 

 Salt river, where the creek makes a sharp bend. A plan of it is published in Collins's 

 History of Kentucky, p. 398. An account of another, of much the same character, 

 in Allen county, is published in the same work, p. 167. 



PLATE XII. No. 2. 



This work is situated at the junction of the two principal forks of Twin 

 creek, an affluent of the Great Miami river, six miles south-east of the town 

 of Eaton, Preble county, Ohio, on S. E. corner of Sec. No. 10, Township 5, 

 of Range 3, E. M. The plan is from a survey by Mr. McBride. 



In position and mode of construction, this work does not differ materially 

 from a number of others- already described. The embankment has an average 

 height of about four feet, and the ditch is not far from five feet deep. The 

 bluff bordering upon the Franklin fork of the creek is for the most part pre- 

 cipitous, and has an average height of between fifty and sixty feet. At its base 

 are several never-failing springs. The height of the bluff fronting upon the 

 other fork varies from thirty feet near the end of the wall, to sixty feet at the 

 junction of the two streams. At its highest part, the bluff' consists of a conglome- 

 rate, composed of gravel and stones of considerable size. It is very porous, and 

 overhangs about ten feet. There are a number of large cavities in it, which 

 were once supposed to be artificial, and the entrances to subterranean chambers. 

 They are formed by the disintegration of the materials composing the bluff. 



Nearly in the centre of the work, in the position indicated in the plan, is a 

 line of large stones. They occupy a space about seven hundred feet long, by 

 twelve broad, and are laid compactly together. Though much sunk in the earth, 

 they are yet distinctly traceable. 



PLATE XII. No. 3.* 



The fortification here presented affords a fine illustration of the character of the 

 ancient defences of the West. It is situated on Massie's creek, a tributary of 

 the Little Miami river, seven miles east from the town of Xenia, Greene county. 



* This work is laid down from surveys made by S. T. Oweins, surveyor of Greene county, and by L. K. 

 DiLLE, M.D. The survey by Mr. Oweins was kindly communicated by W. B. Fairchild, Esq. of Xenia. 

 The work lias also been personally e.xamined by the authors. 



