28 BULLETIN OF THE LABORATORIES 



slopes and sharp summits. It seems almost inconceivable that these 

 till deposits could have retained such steep gradients for such a length 

 of time, yet it is quite evident that the high angles are the original 

 slopes of the moraine and are not due to the subsequent erosion. 

 There are many deep gullies and ravines cut by present agencies 

 which reveal the true till structure of the deposits, but these can be 

 readily distinguished from the older forms, although in both cases the 

 slopes are so great that it is almost impossible to climb them. The 

 surface is sparsely strewn with erratics. One of fine grained trap was 

 estimated to weigh a hundred tons. There was also found a jasper 

 conglomerate about the size of a man's head. Many observations in 

 the immediate vicinity of B gave a mean elevation of 200 feet above 

 Paint creek, 1000 feet A. T. The maximum elevation recorded was 

 250 feet above Paint, 1050 feet A. T. 



The most conspicuous object in view from B is a high treeless 

 hill to the west, which is located on the Giffen farm and which I 

 have called Peach Orchard hill. The eastern exposure of the hill is very 

 steep, and is much cut up by gullies which show very beautifully the 

 contact line between the drift and the rock soil. The thin covering 

 of boulder clay is pushed up the side of the hill at least 70 feet above 

 the mean level of the Flats. 



From the top of the hill, C, the prospect is grand and is well 

 worth the climb. At an elevation of 485 feet above the creek, 1285 

 A. T., with an unobstructed view in every direction, it can not but 

 enthuse the observer. The topography is spread out for inspection 

 like a huge relief map, which it really is. Northward the view is sim- 

 ilar to that from A as is also the view to eastward, — with this difference, 

 station A is over two miles away with a broad and deep valley interven- 

 ing. Following with the eye the outlines of this valley, as indicated 

 by the long lines of hills, it is seen to extend many miles to the south, 

 and within its rock-bound walls 250 feet below lies a tract of country, 

 the Beech Flats, which never seem so flat as when viewed from this 

 elevation. To the west extends the long ridge of sandstone hills 

 which form the south wall of Paint valley. Just south of this is an- 

 other ridge running nearly parallel with it with quite a wide valley be- 

 tween. As it is not possible to determine all the characters of this valley 

 and its westward extension, we descend into it and proceed westward 

 along the dirt road which runs along its northern side. 



