| DESCRIPTIONS
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Management
Areas, Intensive Use Areas and Equestrian Use Areas of the
Land and Resource Management Plan
Management Areas are spatially
identified areas within the Allegheny National Forest that
are assigned sets of Forest Plan decisions.
Intentive Use Areas are where motorized off-highway
vehicle trails can be constructed.
Equestrian Use Areas pertain to horseback
riding for recreational purposes.
Special
Areas: Existing and Recommended (except WSR)
National Forest System lands that contain outstanding
examples of plant and animal communities, geological features,
scenic grandeur, or other special attributes. SA's are nationally
designated by the Forest Service or by legislation. SA's are
managed to emphasize recreational and other specific related
values.
Special
Areas: Wild and Scenic Rivers (WSR)
RECREATION RIVER - Wild and Scenic Rivers Act
Usage: Classification applied to rivers or sections of rivers
that are readily accessible by road or railroad, that may
have some development along their shorelines, and that may
have undergone some impoundment or diversion in the past.
SCENIC RIVER - Wild and Scenic Rivers Act Usage: Classification
applied to rivers, or sections of rivers, that are free of
impoundments; where shorelines or watersheds are still largely
primitive and shorelines are largely undeveloped, but accessible
at places by a road.
Scenic
Integrity Levels
A management goal for the scenery resource that
is based on physical and sociological characteristics of an
area and on the degree of acceptable alteration of the natural
appearing landscape.
Scenic Integrity Levels (SIL) - The state of naturalness
or disturbance created by human activities or alteration.
SIL is used to inventory the existing condition and to describe
objectives during alternative development.
VERY HIGH - The valued landscape character is intact with
only subtle, if any, deviations.
HIGH - The valued landscape character appears intact.
MODERATE - The valued landscape character appears slightly
altered.
LOW - Deviations from the valued landscape character may
begin to dominate the landscape being viewed.
VERY LOW - The valued landscape character appears heavily
altered.
UNACCEPTABLY LOW - The valued landscape character being viewed
appears extremely altered.
Scenic
Integrity: Concern Levels 1 and 2
A measure of the degree of public importance
placed on landscapes viewed from travelways and use areas.
Concern Level 1 (CL1) travelways and use areas include nationally
and regionally important locations including primary roads,
scenic byways, trails, wild and scenic rivers and other special
designation areas. These CL1 areas have the highest concern
for scenery based on heavy recreation traffic and the perception
that scenery is one of the primary objectives for traveling
these corridors.
Concern Level 2 (CL2) travelways and use areas include locally
important locations including secondary roads, hiking trails,
streams, and all motorized trails. These CL2 areas may have
high to low use, and may be traveled for dispersed recreation
activities with a moderate interest in scenic viewing.
Thirteen
Percent Area
A term used to describe Forest Service land
that drains directly into the unimpounded section of the Allegheny
River between Kinzua Dam and Tionesta Dam. The area makes
up 13% of the total land base managed by the ANF, and is important
to aquatic species in the Allegheny River.
Classified
Streams
REMOTE Trout Stream - An Allegheny National
Forest designation of a stream that provides an experience
in a remote, natural and unspoiled environment with minimal
human activities.
CLASS A Trout Stream - A Pennsylvania Fish and Boat Commission
designation based on biomass criteria. Class A is the highest
level given for a trout stream.
WILDERNESS Trout Stream - A Pennsylvania Fish and Boat Commission
designation of a stream that provides an experience in a remote,
natural and unspoiled environment with minimal human activities.
Identified
and Mapped Potential Old Growth Areas
Previously identified areas to be managed for
future old growth.
Colluvial
Slides
Mapped landslide areas.
Desired
Recreation Opportunity Spectrum
The Recreation Opportunity Setting (ROS) desired
by the Land and Resource Management Plan. ROS is a classification
system designed to delineate, define, and integrate outdoor
recreation opportunities in land and resource management planning.
ROS classes are used to describe all recreation opportunity
settings, from natural, undisturbed, and undeveloped to heavily
used, modified and developed. ROS designations attempt to
describe the kind of recreation experience one may expect
to have in a given part of the National Forest. The ROS classes
include:
RURAL - The natural environment is substantially modified
by land use activities. Opportunity to observe and affiliate
with other users is important as is convenience of facilities.
There is little opportunity for challenge and risk and self-reliance
on outdoor skills is of little importance. Recreation facilities
designed for group use are compatible. Users may have more
than 20 group encounters per day.
ROADED NATURAL - Resource modification and utilization are
evident, in a predominantly naturally-appearing environment
generally occurring within ½ mile (greater or less
depending on terrain and vegetation, but no less than ¼
mile) from better-than-primitive roads and other motorized
travel routes. Interactions between users may be moderate
to high (generally less than 20 group encounters per day),
with evidence of other users prevalent. There is an opportunity
to affiliate with other users in developed sites but with
some chance for privacy. Self-reliance on outdoor skills is
only of moderate importance with little opportunity for challenge
and risk. Motorized use is allowed.
SEMI-PRIMITIVE NON-MOTORIZED - A natural or natural-appearing
environment generally greater than 2,500 acres in size and
generally located within ½ mile (greater or less depending
on terrain and vegetation, but no less than ¼ mile),
but not further than 3 miles from all roads and other motorized
travel routes. Concentration of users is low (generally less
than 10 group encounters per day), but there is often evidence
of other users. There is a high probability of experiencing
solitude, freedom, closeness of nature, tranquility, self-reliance,
challenge, and risk. There is a minimum of subtle on-site
controls. No roads are present in the area.
Roadless
Area Conservation Rule
Inventoried Roadless Areas identified in a set
of inventoried roadless area maps in the Forest Service Roadless
Area Conservation Final Environmental Impact Statement Volume
2 dated November 2000.
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