The Lambertville record. [volume] (Lambertville, N.J.) 1872-1968, 1874-07-29


About seven miles north of the Sour
land range, and almost parallel with i
is seen the brow of an elevated area o.
Hand extending from the Delaware near Pralls
willie to the South Branch near Pennington
This, Cor convenience of description, we will
cali the Swamp Ridge.
The actual extent of this range mucl
exceeds these limits. It stretches from the
banks of the Delaware to those of the Soutl
Branch, thence northward to the Paleozoit
formation near Clinton. In many places it
altitude exceeds that Of the Sourland Range
s Cherryville, located ON this crest, has an alti
tude OF 775 feet above the level of the sea.
The schoolhouse on the road leading from
Pennington to Crcten is $50 feet above the
level of the sea. Amos Bearder has an ele
walton OF 40 Geet above the same level
David Morgan about 375 feet.
Along this ridge I have not been able tc
find any Trap; although in many places the
:. condition of the altered shaie is such as te
lead me to believe that if the surface could be
removed for few feet only, it would be dis
closed. In fact l am fully satisfied that the
anatomy of this ridge is similar to that of the
Sourland with the exception that the Trar
Dixie does not extend to the surface in this
case as it does in that. However, its proper
tions are grander and its results are very sig
nificant.
This view is further strengthened by in
vestigations made during the present sum-
mer, and in order that any who may wish
: may satisfy themselves of the verify Of my
statement may follow over the ground and
gain an ocular demonstration of the problem
beg leave to enter little into detail. In
ascending the Swamp Hill in journeying from
Pennington to Croton, as we reach the brow,
very hard flinty-like rock standing out like
WALL meets our view on either side of the
road. As we pass this jutting out of the
altered shale rich deep soil is passed over
for few hundred yards and again we meet a
wall of rock, blue, glistening, very hard, hav-
ing conchoidal fracture and when struck
with hammer gives a sound like pot-netal.
If we turn to our right and follow this wall
northward we trace it along the west OF
Cherryville, thence to John nj ------ west
of Sydney, thence into the cut made by the
Packer r. R., a mile or two south of Clinton.
At some places along its course the wall is
bold and distinct, standing out on the eastern
side to the height of 4, 5 and in few places
even to 10 it,, but for the most part is covered
by the soil and is traced with some difficulty.
In John NJ Baldwin's quarry at Sydney we
see the altered shale, which has formed this
1xr;,
formally upon the Basaltic Trap. The same
is seen in the before-named Rail Road cut near
Clinton.
If from our point of departure we turn to
our left and follow the same wall to the west,
we find many places where the altered shale
stands out in bold relief, sometimes one or
two feet above The ground on the south side,
for the space of 200 or 300 yards; sometimes
or feet for 100 or 200 yards and just north
of Risler's saw-mill it is from ten to twelve
feet in vertical extent. However, for the most
part, it is covered with small fragments of its
broken surface together with some loose earth
supporting scanty growth of vegetation.
Thus it may be traced, S. w. across the road
& leading from Ringoes to Pittstown, just south
Of Harmony school house, thence north OF
De-. - !, Iii, t,onoo ,,o.tl 80
4,ssnao so,,th 90 ,he K;,owood cbnrcr thenos
~, D.,aa,.a po;nt p,oosa,,4
where we find it conformably OVERLAPPING the
It. {, Tohn NJ pa,dw;n,s o,,arrv above
s,ant;onod Tbe entire length of tb;s wall II
NJ, Iersev l. abont % miles. Rut tb;s !.
~. frsot;on of : oreat r;doe that has 4.
s.-..a.,as savorad hv The DaIaware r;vsr ),
DE- p,oasant
- ..as:as a. so,,t,, VOL, of th;s d;ls .