
There are other streams where I can catch more trout, although I have had
some truely mind-boggling days on Penn's There are other streams where I
have better assurance of catching a big one, although the largest trout I
ever saw hooked on a dry and the biggest brownie I ever saw in "open"
water in Pennsylvania were at Penn's. But when I want to go fishing, in
every sense of the word from anticipation to memory, I go to Penn's
creek.
A Brief Overview
Penn's Creek is divided by topography into three distinct zones,
each with its own appearance and fishing characteristics. The
bulk of angling interest focuses on the trout fishery in the two
upper zones and the first few miles of the lower, which together
totals some 35 miles of stream. Angling pressure and tactics
vary from one zone to another. For a MAP of Penn's Creek, click
here.
The upper zone comprises 13 miles - fertile agriculture basins
known as Brush and Penn's Valleys. Flows, under normal conditions,
consit largely of limestone springwater, running gently over a streambed
of mud, sand, and gravel. Willow-lined undercuts and smooth flats
support a fair population of wild brown trout, but not enough to qualify
Penn's as Pennsylvania Class A wild trout stream. Consequently, the
stream here is rated Class B water and receives hatchery plants shortly
before and just after opening day of trout season. Early-season anglers
take a heavy toll with Power Bait tactics.
The middle zone, approximately 15 miles in length, is radically different.
The stream takes a rough ride through a series of gaps in a succession
of high, forested ridges: the Seven Mountains. Dozens of small
freestone feeders and seeps add their touch to the water's chemistry.
An excellent population of wild brown trout exists in the first dozen
miles, harbored by the mountains' castoff boulders that pave heavy
riffles and deep pools.
The middle zone is what most anglers refer to when they talk about
"fishing Penn's." It receives the heaviest pressure, for it is scenic,
has excellent structure, and flaunts an unmatched range of aquatic life,
making fishing there both fun and frustrating. Most of this water is
rated Class A and not stocked. Anglers here are generally more
skilled, because more ability is required to catch the Creator's product
than man's. Most fly-fish, but alongside them can be observed the
best bait men in the northeastern United States. Unfortunately,
many anglers kill much, if not all of their catch.
After pushing through the hills, Penn's enters its lower zone -
the pastoral Buffalo Valley. The stream is still Class A where
it exits the hills, but quickly changes to Class B because of
summer warming and liberal creel limits. Trout are stocked
for the first few miles of Penns' passage through the Buffalo
Valley, and they draw typical Pennsylvania Opening Day crowds.
Wild trout are still present, however, and they, as well as the
presence of good hatches, attract fly rod pressure. But when
summer comes, lower Penn's is considered bass water from the
village of Glen Iron all the way to its confluence with the
Susquehanna River.
Geologic and Historic Background
Present-day Brush, Penn's, and Buffalo Valleys are located
near the center of Pennsylvania's Valley and Ridge physiographic
province, a great arc of mountains running diagonally across
the state from Bedford County on the Maryland border to a
point near East Stroudsbury on the Delaware River. Originally
the bed of a vast, shallow sea, the region was formed by
intermittent collisions of the African and North American Plates,
which reared the Appalachian Mountains. Peculiarities in rock
stata under the leading edge of the mountains caused the uplift
to ripple, in places exposing massive deposits of soluable
limestone.
Water repelled from less permeable formation of either side of
the limestone wore away at its surface, leaving substantial valleys
flanked by long high ridges. Because of fracturing and limestone's
solubility, water in large volume was admitted into the ground,
often disappearing en masse through large depressions called
"swallow holes". This type of terrain, known as karst, conducts
groundwater to places where the land's surface meets the water
table. Springs result, the water carrying with it nutrients leached
from the rock it has passed through. In Brush Valley, where
water from a large area is channeled underground to one
spring, Penn's Creek is born.
A fascinating aspect of karst topography's effect on Penn's Creek's
fishery is that almost every stream in Penn's and Brush Valleys sinks
into the ground at some point. This often causes confusion as to just
what is flowing where. For instance, the "official" source of Penn's,
which under conventional definition of the term is to be found at the
farthest point up a stream where water flows year-round, is one of
several unnamed runs that trickle down hollows on the side of Nittany
Mountain. These candidates all disappear into swallow holes, however,
which can be found along Route 192 west of Madisonburg. The
sunken rivulets flow underground to Penn's Cave, where they re-emerge
at what is considered, for practical purposes, the source of Penn's
Creek.
Penn's Creek's resilient trout fishery is the result of a happy set
of geologic circumstances. Foremost in importance is the
influence of terrain. The watershed's mean elevation is 1,330 feet
in its upper portions. At Penn's Creek's latitude, groundwater at
these altitudes maintains average annual temperatures of 38-51
degrees Fahrenheit, well within the range trout need. The elevation
works in concert with the natal valley's karst topography, which
stores exceptional amounts of groundwater and releases it, in
constant flow, into the stream. Accordinly, Peen's suffers
less of the boom/bust flow and temperature fluctuation affecting
freestone streams. Barring heavy downpours, the stream is
usually slow to rise. Once high, it take considerable time to
drop. While temperatures can get uncomfortably high in dry
summers, they do so slowly and with much less negative effect
than on many other waters.
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