CLIFFORD. G 5 . 147 



The Cherry Ridge horizon makes a conspicuous outcrop 

 as usual, the impure Limestone at its base weathering black 

 and standing out in bold relief along the base of the cliffs 

 formed by it and the overlying sandstone. 



Nos. 11 and 13 are very hard and massive, grayish-green 

 sandstones, and are seen about 1£ miles west from South 

 Knob along the waters of a branch of Tunkhannock creek. 



In the northwestern corner of Clifford, near E. Evans's, a 

 bed of red shale 30' thick is seen at 1150', and above it 250 

 feet rise massive cliff-rocks like huge stepping stones, each 

 being 20' to 25' thick, and separated from one another by 

 small shale intervals. 



At the cross roads, near the school-house in the Burdick 

 district, a massive sandstone is seen extending from 1600' to 

 1650', and in the hill, 200 feet above, there occurs a stratum 

 of very dark aspect much resembling the Cherry Ridge 

 limestone, which no doubt it represents. 



Near G. W. Hull's, 1^ miles east from Dundaff, a thick 

 stratum of Calcareous conglomerate occurs at 1770' and be- 

 low it red shales are seen for several feet. This most prob- 

 ably represents the Cherry Ridge limestone since it has 

 about the right elevation for that stratum. 



At the very southern line of the township is Crystal Lake 

 (elevation 1750' A. T.) a beautiful sheet of water lying partly 

 in Lackawanna county ; it is well stocked with fish and is 

 a celebrated summer resort for the Carbondale and Scranton 

 people. The proprietor of the Crystal Lake Hotel informed 

 me that he sounded a depth of 120' of water in the basin. 

 It is surrounded with banks of Drift and fed by springs 

 from the bottom as no stream Hows into it ; the outlet is 

 southward through a kt notch ' ' in the Lackawannock Mount- 

 ains into the Lackawanna river. 



The entire region around, is 1000' to 1200' lower than the 

 top of the South Knob, and vast heaps of morainic debris 

 are seen on every hand. 



Two great Glacial currents seem to have come together 

 around the southern point of South Knob one moving down 

 from the northeast along the valley of East Tunkhannock 

 and the other down the main branch of the same, just west 



