Cape May Formation — Local Details. 191 



streams tributary to the lower Delaware. Eolian sand has modi- 

 fied the surface to some extent. 



Woodbury Creek. — There are some terraces along the lower 

 course of Woodbury Creek, but in many places the sands and 

 gravels of Cape May age are not disposed in this form. Ter- 

 races appear where Mathews Brook comes in ; also on the north 

 bank of Woodbury Creek just west of Woodbury; but these are 

 low and probably degradational. The Cape May sands and 

 gravels are mostly on the north side of the stream. 



Mantua Creek. — The Cape May formation of this valley 

 merges into that of the Delaware proper a little below Berkley. 

 At Berkley, and between that place and Paulsboro there is a 

 terrace at 20 to 30 feet which appears to represent the upper 

 limit of aggradation here during the Cape May epoch. It is 

 doubtful, however, if all the lowland of the vicinity was ever 

 built up to this level, though the lower end of the valley of 

 Mantua Creek was. 



The Cape May sand is well seen in a terrace 20 to 25 feet 

 above tide a little west of Berkley, and in greater volume just 

 above the junction of Mantua Creek and Edwards Run. The 

 surface is much affected by wind-blown sand. Half a mile west 

 of Mantua there is a terrace at 40 feet covered with about 10 

 feet of gravel and sand. There is a similar terrace half a mile 

 east of Mantua. 



Between Mantua Creek and Monongahela Brook, there is a 

 terrace at 40 feet, covered with 20 feet of sand and gravel. A 

 mile or so east of Wenonah, there is a terrace on the right bank 

 of Mantua Creek, at an elevation of about 60 feet. Its upper 

 20 feet is of Cape May sand and gravel, loam-covered, resting 

 on Cretaceous beds. The formation is represented up nearly 

 to the sources of the streams which join to make Mantua Creek, 

 that is up to points a mile or more above Hurffville, 2 miles 

 above Dilkesborough, and a mile above Pitman Grove. The 

 surface of the formation rises from about 40 feet at Mount 

 Royal, to nearly 50 feet just above Wenonah, to 70 feet at 

 Hurffville, to 90 or more at Dilkesborough, and to 120 feet east 

 of Glassboro. Up Chestnut Branch it rises to 100 feet or so west 

 of Pitman Grove. 



