401 
[Davis and Wood. 
country drainage on the old peneplain. The Rockaway and the 
Pequannock are much smaller than the Delaware, but are sufficiently 
explained in a similar way ; they flow southeast from the highest 
part of the Highlands and carry the waters of a few longitudinal 
streams with them. All of these 
are probably revivals of the Sclioo- 
ley cycle of drainage. Faults may 
have had in that or some still ear- 
lier cycle some share in locating 
these transverse streams ; but this 
question has not been definitely 
settled. The irregular course of 
the Rockaway by Boonton is the 
result of drift obstructions in its 
simpler preglacial course, and need 
not be referred to an inheritance 
from the Cretaceous cover. But 
the Lockatong, fig. 10, a small 
branch of the Delaware, flowing 
across the sandstone plateau of West Hunterdon between Fleming- 
ton and Frenclitown, can hardly be regarded as a simple revived 
stream ; if such had been its history its headwaters must have es- 
caped by Warford creek (a, fig. 
10), on a short course along the 
strike of the beds to the neighbor- 
ing master river, instead of cross- 
ing the beds for twice this distance. 
Indeed, this adjustment cannot be 
much longer delayed. The upper 
Lockatong runs over the plateau in 
a very shallow valley, and near the 
flat divide between it and Warford 
creek, the stream is at an elevation 
of 470 feet. The head of Warford 
creek is only a quarter of a mile away, and this stream falls 300 
feet in its course of two miles and a quarter along the strike of a 
relatively weak stratum, while the Lockatong makes the same de- 
scent in about seven miles across the strike of harder strata. 
The notch, x, fig. 11, in the curve of Cushetunk mountain, one 
of the smaller trap ridges near the Highlands, where the wagon 
PROCEEDINGS B. S. N. H. VOL. XXIV 26 MARCH, 1890. 
