OF DENISON UNIVERSITY. 3! 



of Brush creek and 1325 feet A. T., the broad plain of the Beech 

 Flats stretches away to the northeast and the horizon is formed by the 

 hills forming the north wall of Paint creek, opposite Bainbridge. To 

 the north at the foot of the mountain, lies the short westward exten- 

 sion of this valley beyond the exit of Brush creek. In the dis- 

 tance are visible the tops of the numerous ridges shown on the map. 

 The appearance being that of a very hilly country and also resembling 

 the view to the east and southeast. So similar are these two views, that 

 the conclusion is inevitable, that their topographical features are the 

 results of similarly operating forces. The region to the east and south- 

 east is beyond the limits of the ice and the natural inference is, that 

 the region to the north has been so slightly modified, that the main 

 features of its preglacial forms are preserved. 



Fisher's mountain M stands out farther to the southwest, and its 

 summit is reached at an elevation of 410 feet above Brush creek, 1295 

 A. T. To the south lies a broad expanse of low lying country in 

 the vicinity of Sinking Springs. From this low region the general 

 slope of the country rises rapidly across Adams county to and beyond 

 the Ohio river. Into this inclined plain Brush creek has excavated 

 a narrow and deep gorge. So narrow are the gorges of all the streams 

 in this district that from the point of view chosen it is impossible to 

 determine their courses. From this same depressed region the coun- 

 try level rapidly rises to the west to the water shed separating the 

 waters of Brush creek and Rocky Fork from those of western High- 

 land county. This region is sparsely covered with drift. The land 

 also rises rapidly to the northwest to the table land and drift-cov- 

 ered region of northern Highland county. 



The descent is now made in order to study the characters of the 

 Brush creek gorge which lies, as shown from our maps, between Fisher's 

 mountain and Fort Hill, but which was not visible from the summit of 

 the mountain. After a very steep descent of 410 feet, the rough 

 mountain road passes between two walls of limestone, evidently a 

 great fissure, and emerges in the dry bed of Brush creek gorge. The 

 slopes of Shults' and Fisher's mountains and Fort Hill have angles of 

 about 35 degrees and where these plains of the mountain sides would 

 intersect occurs the [J shaped gorge of the creek, with vertical walls ot 

 about 50 feet and the gorge about 100-200 feet wide. The bed of the 

 creek is composed largely of limestone gravel with a small percentage 

 of northern drift pebbles. In no part of the gorge examined in this 



