PRETZ: FLORA OF LEHIGH CouUNTY, PENNSYLVANIA 49 
The Jordan Creek has its rise at the base of the Bake-oven in 
the Kittatinny Range and has numerous branches within the 
shale region. In the limestone region, which it enters somewhere 
in the general vicinity of Guthsville, being deflected eastward 
here by the Huckleberry Ridge, a shale ridge, the Jordan Creek 
has practically no branches. Its valley from Guthsville north- 
ward is of great beauty, the tortuous windings of the river bed 
giving rise to ever changing vistas. The sharp rises are frequently 
clothed with hemlock and pine, sometimes in almost pure stands, 
and are usually beset with low clifflike outcrops along the water’s 
edge as well as higher up the slopes. In the limestone region the 
stream is dry as far as Helfrich’s Springs for a part of the year. 
The Little Lehigh River rises in the South Mountains in Berks 
County and flows entirely within the limestone region within the 
county. With the exception of Trout Creek (the second of that 
name in the county), which empties the drainage of a part of the 
north slopes of the South Mountains into the combined Jordan- 
Little Lehigh at Allentown, all the drainage of the north slope of 
the main range of these hills within the county reaches this stream 
by its several tributaries. It is fed by numerous springs and some 
streamlets, having their sources in the limestone as well as the shale 
region, and has a strong and constant flow even in seasons of 
drought. Conifers are practically absent from the gentler wooded 
slopes of the valley of this stream, which lack the wilder aspect of 
the valley of the Jordan in the shale region. 
These streams, together with the Saucon Creek draining the 
Saucon Valley into the Lehigh River in Northampton County, 
the Antelawny Creek already mentioned, and some streams reach- 
ing over the border into the county on the south, constitute prac- 
tically all of the streams of importance in the county. 
Many water courses of the shale region in general are dry in 
summer and there are comparatively few permanent moist areas 
of marshy or boggy character of any extent excepting along its 
contact with the formations of the Kittatinny Range. Along this 
range are many such areas, however. The limestone region in 
respect to such areas resembles the shale. On and in the vicinity 
of the South Mountains are a number of moist areas of boggy 
character, usually wooded or shaded by low growth such as alders. 
"0, boi, Garg 
1 919 ea 
