DIP AND STRIKE OF STRATA. 
613 
LOCALITIES. 
E and W . 
do 
N10»E .. 
N IQo to 20° W 
N 20° W . 
E and W . 
NW. 
N 30° to 40° E. 
Korttward .... 
N 70° to 80° E and 
from 10° to 40° East¬ 
ward 
N70°, E 60° to 70< 
Vertical. 
NE 45°. 
NE contorted.. 
E high angle .. 
SE 30° ....... 
SE40° to 60°.. 
Eastwardly.... 
SE 30° to 40°.. 
Eastward. 
Nearly vertical. 
NW andSE .. 
NW. 
Northwardly , 
N 20° to 10° W 
Various .. 
COLUMBIA COUNTY, 
One-quarter of a mile east of Milan (Cassels). 
Four miles northeast of Milan, near Shufelt’s tavern. 
Slate hills crossed by the 
Kinderhook and Hudson 
road, two miles from Kin¬ 
derhook to the Upper falls. 
Slates, grits, limestones, con¬ 
glomerates, etc. Vide PI. 
24, figs. 2 and 3. 
Slate ................... 
Sparry limestone, contorted. 
Vide PI. 38, fig. 2. 
Slate, containing graptolites 
and trilobiles 
Grit, succeeded on the east 
by red, purple, and varie¬ 
gated slates 
Talcy limestone. 
Talcy slate. 
Slates of various qualities . 
Roof slate quarries. 
Eastward high angle. 
Eastward about 30° .. 
ENE. 
Nearly vertical, 60° to 
90° eastward 
Eastwardly.... 
Eastwardly slightly 
NW 10° to 15° .... 
N70° to 80°, E 15° .. 
Geol. 1st Dist. 
A little north of Mount Bob. 
At the Lower falls of Kinderhook creek. 
One mile northeast of Rider’s mills, in Chatham. 
Limestone intersected by 
veins of quartz 
Limestone across the Leba- 
1 valley 
Limestone in echelon ridges, 
general range, north- 
northeast and south-south- 
west. Vide PI. 23, fig. 6. 
Slate, talcy slate, limestone, 
etc. Vide PI. 14, fig. 1. 
Same rocks. 
Red, purple, grey, etc. slate, 
intersected in every direc¬ 
tion by quartz veins 
Ridge of slaty rock injected 
with quartz in every di¬ 
rection, almost trappean 
in aspect 
Siliceous, slaty, injected 
rock. PI. 23, fig. 7. 
Limestone .. 
Lebanon springs, p. 3, 183. 
A little east of Lebanon springs, p. 187. 
Hancock mountain from Lebanon springs to the sum¬ 
mit. p. 189. 
Gillett & Co’s, quarries, one and a half mile west of 
Lebanon springs, p. 192. 
Between Lebanon springs and the Shaker village. 
Lebanon valley, a little north of Whiting’s pond, 
p. 3, 201. 
West of Ghent, p. 3, 215. 
Roof slate containing crys¬ 
tals of iron pyrites 
Sparry limestone. 
Talcy and mica slate. 
Roof slate and sparry lime¬ 
stone 
Granular limestone 
slate, laminated and strati¬ 
fied. PI. 10, fig. 5. 
Grits, slates, and limestones 
of the Champlain divi- 
Hillsdale, east over the mountain. 
Four or five miles north of last section, p. 223. 
One-quarter of a mile from Canaan centre railroad 
cut. 
One-half mile south of Canaan centre, p. 249. 
One-half to three-quarters of a mile south of Red- 
hook. p. 255. 
In the valley north of Hillsdale, from- mills 
to the Baptist meeting house, p. 263. 
Foster’s slate quarries, Hillsdale. 
Between Hillsdale and Mount Washington (Cassels). 
Base of Mount Washington, and at Taghkanic falls 
(Cassels). 
West side of Copake flats, and on the mountain side 
of Copake (Cassels). 
On the west side of Prescott’s ore bed north of Hills¬ 
dale (Cassels). 
Near Chrisler’s pond, Copake. 
Near Montross on the Ancram creek. Variation 
local. 
Near Jackson’s corners. 
Great Neuten hook; stratification contorted and bro¬ 
ken up. 
