DIP AND STRIKE OF STRATA. 
621 
LOCALITIES. 
SW very slightly .,.. 
Along the road east of Knoxville village. 
On the road from Albany to Clarksville, eight to 
twelve miles from Albany. 
Near Salem, one-half mile west in New-Scotland. 
Coeymans and Westerlo, well exposed at the flag¬ 
stone quarries, and in the valley of the Hawna- 
kran’s kill, and on the terraces on the flanks of the 
mountains. 
On the Helderberg mountain, between Van Schaick’s 
and the Corporation village. 
SARATOGA COUNTY. 
1 Westward,.... Southward, 
Variable, gene¬ 
rally NNE 
and N 
do 
do 
Broken up and very 
much contorted 
The same, but general¬ 
ly eastward at high 
angles 
do do 
Guartz rock or Potsdam 
sandstone, calciferous 
sandstone and limestone 
Limestone ... 
Graptolitic slate.. 
Slate and slaty grits, Hud¬ 
son slates 
ESE 30° to 90°, .. 
do 
do 
Gneiss, hornblendic gneiss, 
with beds of granite and 
limestone, and magnetic 
oxide of iron 
Along the southern side of the primary rocks, from 
Saratoga to the west line of the county. 
Saratoga-Springs. 
Ballston-Spa. 
North of Schenectady for a few miles, and along the 
railroad. 
Along the Mohawk, below Alexander’s bridge and 
the aqueduct, to the Hudson, 
Along the Hudson to Baker’s falls. 
Northward from the Mohawk by Saratoga lake, east 
side, to Baker’s falls. 
From Saratoga-Springs throughout the mountain 
region of the northwest part of the county. 
SULLIVAN COUNTY. 
NNE .WNW30°to40°.... 
E and W. North 0° to 3° 
Variable, SW to 
to NW and 
NNE 
. NW 0° to 3° . 
. ENE 0° to 3°, 
. Westward 5° to 30' 
do to 3°..., 
NW, WSW, variable 
angles from horizon¬ 
tal to 3° 
Nearly horizontal .... 
Grits and slates, with some 
anthracite. 
Grits and slates of the Cat- 
■ ill, etc. rocks 
Two miles west of Red-bridge at the “coal mine.” 
Near the mouth of the Lackawaxen creek. 
Between Port Jervis and the Lackawaxen creek. 
do do do do 
About one to two miles on the road from Wurtsboro’ 
to Monticello. 
On the Lumberland turnpike. 
Along the Delaware river. 
DELAWARE COUNTY. 
Nearly horizontahslightlRocks of the Catskill and 
undulations, the Erie divisions 
troughs of which 
seem to be in the val¬ 
leys of the main 
streams 
Over the whole county, the dip is so slight as to be 
imperceptible to the eye where examined. 
Geol. 1st Dist. 
and Nearly horizontal, dip¬ 
ping generally to the 
S, SSW and SW 
from 4° to 3° 
. Very much broken and 
contorted in some 
places 
SCHENECTADY COUNTY. 
Champlain division. 
Near Niskayuna, and some deranged near Alexan¬ 
der’s bridge and the aqueduct. 
