LOWER SILURIAN SYSTEM OF EASTERN MONTGOMERY CO. 44I 
point which drops off abruptly to the east but has very little slope 
to the west. On the northeastern corner of this hill are extensive 
quarries and the place may well be called Quarry hill. A section 
was measured extending from the river level at Crane’s village one 
mile south to the top of the hill. : 
460A Section from Crane’s village to the top of Quarry hill 
A® Thin bedded, dark blue limestone often of 
crystalline structure. Abounds in fossils including 
AWsaphus -platycephalus Stokes and 
Rafinesquina alternata (Con.) Hall 
and Clarke. Trenton. ey 
A$’ Grayish blue limestone containing Col- 
umnaria alveolata Goldfuss and an abund- 
ance of crinoid segments. Near the top frag- 
ments of rock in all respects similar to Calciferous 
sandrock are imbedded in the limestone. Trenton. iO —4e2" 
A’ Dark blue fine grained, lumpy, thick bedded 
limestone containing Columnaria alveo- 
lata. Inthe western part of the quarry the same 
layers become more crystalline in grain and grayish 
in color. Black river. 7/-9/=4114' 
A® Dove colored limestone, fine grained with 
conchoidal fracture. In thin layers weathering 
‘somewhat unevenly. Birdseye. 24’==4024’ 
A® Mostly covered but exposed at the top in the 
side of Quarry hill and in the floor of the eastern 
part of the quarry, and at the base in the highway 
near the Evakill.1 Somewhat arenaceous lime- 
stone; less arenaceous at the top. 120’==400’ 
A* Medium to thin bedded shaly arenaceous | 
limestone with fucoidal markings specially near 
the top where the color is dark blue and the 
weathering very light ash-gray. Contains iron py- 
rites. Base at level of Evakill. Fucoidal mem- 
ber of Calciferous. I 30’==280’ 
1This creek is left without any name on the Amsterdam topographic sheet, but 
the creek which empties into the Mohawk at Crane’s village is known as the Eva- 
kill. 
