110 NEW YORK STATE MUSEUM 



loamy and undulating. Over the clay is a mass of unstratified 

 material from two to eight feet thick and the upper surface of 

 the clay is uneven. The overlying unstratified material is a 

 coarse sand full of cobblestones, of gneiss, schist and granite, all 

 of them rounded but not scratched. On the hillside to the west 

 of this deposit is a large, isolated bowlder of granite. The 

 upper terrace at Stony Point is about 75 feet higher than the 

 station level ; a portion of this terrace remains about one eighth 

 mile north of Stony Point station on the west side of the track. 

 On the west side of the track where it crosses Cedar Pond brook 

 the delta structure is observable in the embankment, the upper 

 portion of which consists of coarse sand, pebbles and cobble- 

 stones which are mostly of gneiss. The lower layers exposed 

 at this point are quite argillaceous. A short distance below the 

 West Haverstraw station and some 500 feet west of the track, 

 an excavation had been made for tempering material. It exposes 

 a fine yellowish cross-stratified sand overlain by several feet of 

 coarse sand and cobblestones. 



In T. Malley's clay bank along the shore on the north side of 

 Grassy Point, the clay is not found above tide level and is over- 

 laid by three to four feet of fine gravel. To the northeast of 

 P. Brophy's yard is the remnant of a terrace. It is composed of 

 obscurely cross-stratified sand and gravel, overlaid by a few feet 

 of loamy clay, very thinly stratified and the layers wavy. There 

 is a bowlder of norite in this bank ; there are also cobblestones 

 of diorite, gneiss and red sandstone. About 600 feet to the west 

 of the yard of D. Fowler Jr. and Washburn the clay is being exca- 

 vated in the terrace escarpment which is here 45 to 50 feet high. 

 It is mostly blue, thinly stratified and orerlain by obscurely 

 stratified gravel and sand. In this excavation was a small ice- 

 scratched bowlder which had been found in the clay. At J. 

 Brennan's yard the clay is overlain by two to three feet of fine 

 sand, and on this is a layer of indistinctly stratified fine gravel 

 six to seven feet thick, with a covering of one foot of soil. The 

 terrace at this point is about 50 feet high. Cobbles one to two 

 feet in diameter of granite, gneiss and pegmatite were found in 

 this bank. Further south at Peck's yard, several bowlders of 

 granite, limestone and sandstone were found in the clay. Those 

 seen were in the lower portion of the bed but I was told that 

 several had been found in the upper portion. 



