Study Area
Appendicitis Hill Wilderness
The Study Area
The
and
Hill
The
streams
impressive
The
in
was
in
the
September
action
and
an
no
all
is
in
located
is
Butte
consist
Inholdings
south
hills
studied
are
and
of
of
Antelope
County
640
miles
five
acres
of
north
and
roads
Boundaries are
and
public
WSA
The
Arco Idaho
of
see Table
land
state
Creek and
High
private
land
on the
1986
Three
Section
wilderness
alternatives
alternative
slopes
slopes
feet
2900
canyon
walls
several
feet
Several
grass
concentrated
support
and
contains
and
sagebrush
supporting
and
almost
drainages
8523
of
Antelope
canyons
stands
Stands
intermittent
above
of
aspen
contain
Douglas-fir
and
willows
Canyons
Chokecherry
under
rising to
north-facing
603
of
the Federal
Big Lost Management Framework
wilderness
Peak
rounded
generally
caves
and the Big Lost River
Crawford
with
mahogany can be found on
mountain
and
Antelope Creek
mountainous
outcrops
and
Newman
WSA
included
public
elevation
rock
Chokecherry
grow
land
on the northwest
between
lies
area
Lower
in
ID-31-14
acres
south
Appendicitis
Valley
land
private
WSA
of
acres
21900
generally
east
Hill
Appendicitis
includes
21900
--
were analyzed
which
is
the
Land
Policy
in
the
EIS
recommendation
alternative
438
and
Management Act
Environmental
Plan/Pahsimeroi
for
of
the Appendicitis
this
report
FLPMA
Impact Statement
Hill
partial
WSA
wilderness
and
was
EIS
filed
the
proposed
alternative
Recommendation and
Rationale
recommended
acres
21900
for wilderness
recommended
acres
for
nonwilderness
The
recommendation
environmentally
natural
for the Appendicitis
environment
BLM
BLM
alternative
regulations
The
impacts
alternative
preferable
the
over
will
all
use
and
policy
term
long
to release
is
avoid
to
minimize
or
Big Lost Management Framework
Hill
the
shows
map
Proposal
for uses
would
It
recommendation
the
Although
the area
alternative
wilderness
all
means
practical
the
Appendicitis
WSA
Hill
the
is
will
than
wilderness
least
change
from
environmentally
Certain
The
use
and
associated
that
trails
impacts
nonsuitable
occurred primarily
vehicle
BLM
to maintain
There
vehicle
unimproved
sites
Existing
wilderness
for
of
would
the area
nearby
is
that
small
than
where
the
the
the
area
be
use
of vehicle
and
and
lowlands
has
historically
and public
but
difficult
vehicle
WSAs
the
patrols
Motor
18 miles
where
location
naturalness
education
from
distance
not
impossible for
there
ways
include
Impacts
miles
Eighteen
human-caused
is
Treatment of mule
in
this
The mechanical
Motorized
are 14
livestock
developed
as
imprints
they
numerous
motor vehicle
of
into
travel
ways
watering
15
of
the
judged to be
be impacted
are
similar
in five
than
less
by vehicle
four
areas
the
area
and
areas
The
of
areas
lacks
available
but
roads within
the
is
significant
physical
wilderness
designated
but
designated
roadless
Solitude
more
are
an
for
opportunities
on dead-end
opportunities
million acres
roadless
exemplary
in
opportunities
WSAs
The
traffic
but
present
primitive
recreation
primitive
Other roadless
users
over
and
experiences
in
wilderness
in
six
are located
in
central
the
to
attractive
areas
and
Idaho
situated
deer
area
is
winter
season
use
of
stable
forage
will
The
habitat
range
and
limited
treatment
recreation
hunting
solitude
wilderness
opportunities
include
acres
400000
are
offer
ranges
in
will
wilderness
They
WSA
and
recreation
attract
mountain
more
during
with
significant
abundant
recreation
primitive
relatively
recreationists
habitat
signing
would
it
in
trespass
remote
sites
watering
encounter these
already
Primitive
features
with
areas
on
impacts
Along
located
are
visitor
values
livestock
does not contribute
Idaho
and
solitude
WSA
and
Even
the
conditions
wilderness
sides
all
of
within
the
over
and
solitude
degrade
also contains
area
vehicle
as wilderness
area
to
reasons
following
canyons
WSA
area
these
site-specific
ways
from
Visitors
WSAs
The
WSA
the
enter
Under
trails
prevent
seasons
because
WSAs
the
numerous
are
the hunting
expected
personnel
These
to
lacking
this
potential
The
increase
to
sides
all
are
during
is
trespass
administrative
from
barriers
the
motor vehicles
hearing
are expected
WSA
the
enter
have
for the
designation
manage
to
ability
roads
and
by seeing
impacts
Natural
canyons
dead-end
of
miles
for wilderness
BLMs
affect
adversely
six
of naturalness
perception
recommended
not
is
conditions
term
long
WSA
Hill
Appendicitis
species
continue
use
and
amounts
on
to
with
mechanized
healthy
will
help
equipment
populations
maintain
good
deer
and
and
trails
approximately
50
visitor
439
is
depend
existing roads
the
preferable
designation
The
The
the use of the land to mitigate
guide
recommended
lands
the
environmental
adverse
Plan
the
not
is
other
cause
days
necessary
on
adequate
Winter
forage
populations
will
occur
annually
primarily
BLM
recognizes
study but
of
wilderness
This
the Appendicitis
in
wilderness
Hill
WSA
the
possesses
management and
minimum
the trade-offs with
characteristics
other
resource
to
uses
qualify for wilderness
outweigh
the benefits
designation
has
high
would
not
area
habitat
that
difficulties
wildlife
be
values
compatible
for wintering
with
deer
wilderness
and
values
elk
and
440
herds
would
Improvements
not
be
allowed
necessary
to
enhance
wildlife
75i
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-41
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5-
IT
Sheei
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-io
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26
23
30
26
.\
iP
NHP7
R.24
R.25
R.25
RECOMMENDED
FOR WILDERNESS
Lillilli
RECOMMENDED
FOR NONWILDERNESS
iiiHhiUH
LAND OUTSIDE WSA
FOR
K1
ififfiPlIllIlMi
SPLIT
LAVA
R.26
ESTATE
STATE
RECOMMENDED
PRIVATE
WILDERNESS
Scale
in
Miles
D-3 1-14
APPENDICITIS
PROPOSAL
HILL
NOVEMBER
1988
Table
Land Status and Acreage
--
Summary
APPENDICITIS HILL
Wilderness
Within
BLM
surface
Split
Estate
and
Study Area
WSA
Area
21900
subsurface
BLM
surface
state
Inholdings
Study
of the
only
640
private
22540
Total
Within
BLM
BLM
outside
WSA
WSA
Split
Estate
within
Split
Estate
outside
Total
BLM
for
within
Land
the
Recommended
Boundary
WSA
WSA
Recommended
Wilderness
Inholdings
state
State
outside
land
private
WSA
Within
the Area
Not
Recommended
BLM
for
Wilderness
21900
Split
Estate
Total
BLM
for
Wilderness
Land
Not
Recommended
21900
Wilderness
Inholdings
state
640
private
442
Considered
Criteria
Wilderness
Recommendations
the Wilderness
in Developing
Characteristics
Naturalness
The
WSA
Hill
Appendicitis
Three
of
dead-end
vehicle
WSAs
road sections
follow
trails
human-caused
these
tends
screening
wilderness
as
imprints
the
would
visitor
are
ridges
water developments
into
travel
they
effect
of the
15
lead
and
of
in
peaks
human-caused
use
WSAs
The
canyons
most of the impacts
impacts however
vehicle
Visitors
sites
watering
Another
The
area
The
imprints
livestock
miles
four
to
the
grazing
manage
and
trails
from one
to
WSAs
the
and
roads
canyons
and
numerous
has
vehicle
WSAs
of the
traverse
but
appearance
character
three
bottoms
livestock
14
to decrease
natural
penetrate
canyon
used to maintain
mostly
in
essentially natural
is
most apparent changes to the
would
good
18
miles
trails
are
encounter
topographic
are concentrated
along
routes
normally travel
Solitude
Within
the Appendicitis
numerous
WSAs
end
canyons
have
boundary
roads views
of
hunting
recreational
other
of
from
Primitive
interest
users
opportunities
designated
wilderness
in
central
views
ridges
but
in
Idaho
six
where
the
and
the
and
are
no
special
feature
in
include
vehicle
and
topography
steep
influences
outside
the
dead-
the
on
travel
southwestern boundary
The
steep
be
taken
can
trips
WSA
mountain
ranges
include
and
among
valley
hiking
backpacking
makes
terrain
rugged
the
canyons
and
floors
these
peaks
lava
plain
and
are
peaks
and
is
but
the
designated
attractive
more
WSA
overnight
the
in
sightseeing
than
to
area
recreationists
400000
acres
situated
the Appendicitis
Hill
lacks
wilderness
Special Features
There
However
northwestern
the
along
surrounding
present
areas
more
are
areas
day and
of
are
roadless
influences
opportunities
and
climbing
Both
opportunities
Other
These
traffic
recreational
photography
high
vehicle
other
each
Recreation
unconfined
Scenic
WSAs
primitive
located
and
from
visitors
The
for solitude
opportunities
outstanding
screens
and
activity
challenging
recreation
wilderness
exists
on the quality of solitude
affect
observation
the
there
of vegetation
and Unconfined
activities
points
excellent
an
primitive
wildlife
WSA
variety
agricultural
Primitive
Outstanding
Hill
and
WSA
443
in
significant
in
They
five
features
physical
nearby mountain
include
roadless
over
areas
ranges
four
The
that
attract
offer
million
roadless
similar
acres
areas
of
are
in the
Diversity
National
the
Assessing
Appendicitis
Wilderness
System
other
Hill
designation
NWPS
BLM
study
This
areas
of
Diversity
and Features
The
Wilderness
as
WSA
of
Represented
located
is
WSA
this
ecosystem
in
Natural
the
state
in
the
would
is
System
Systems
by Ecosystems
Mountain
Rocky
not
represented
under
Preservation
study
add
by four
with
Forest
new ecosystem
this
Province
to
the
designated
areas
ecosystem
This
--
Sagebrush
with
76129
information
acres
is
Ecosystem
Steppe
Wilderness
National
Preservation
There
summarized
are
eight
on Table
TABLE
Ecosystem
Bailey-Kuchler
NWPS
classification
areas
Rocky
Mountain
Representation
Areas
Other
acres
areas
BLM
Studies
acres
Forest
Province
NATIONWIDE
Sagebrush
Steppe
Ecosystem
76129
23
247843
IDAHO
Sagebrush
Steppe
Ecosystem
162710
444
Expanding
Within
The
Appendicitis
acreage
of
the
Days
Hill
designated
WSA
areas
for Solitude
Opportunities
Driving
is
within
and
five-hour
other
or Primitive Recreation
Time Five Hours
BLM
drive
study
from
of
Boise Idaho
within
areas
Centers
Major Population
five-hour
Table
summarizes
drive
of
the
the
population
number and
center
Table
Wilderness
of
Opportunities
Major
Population
NWPS
Population
Boise
Idaho
Centers
areas
16
for
Areas
acres
4741570
445
Residents
Centers
Other
BLM
Studies
areas
acres
141
5374250
the
Balancing
Idaho
No
of
has
the
largest wilderness
Return Wilderness
in
area
the
48
contiguous
of Appendicitis
Designation
of Wilderness
Distribution
Geographic
Frank
the 2.2 million acre
states
WSA
Hill
Areas
would
not
balance
help
Church
River
of
distribution
geographic
wilderness
Manageability
Certain
miles
and
of
conditions
from
all
use
Natural
These
sides
season
Even
location
and
with
WSAs
not
found
unless
recognize
If
the
feasible
WSA
section
fence
lands
WSA
the
Under
This
of
these
and
has
is
that
trails
occurred
primarily
it
would
be
would
boundary
not
during
be
difficult
WSA
hunting
areas remote
difficult
BLM
for
considered
improve wilderness
would
change
the
motor vehicle
the
was
six
by seeing
enter
to
because
The
term
long
naturalness
are accessible
expected
conditions
integrity
the
along
of vehicle
canyons
use
of
perception
miles
trespass
the
over
adjustment to improve manageability
and
size
the State
wilderness
outside
where
vehicle
as wilderness
visitor
18
trespass
WSAs
the
in
contains
and
boundary
areas
and
lowlands
personnel
constructed
were
designated
is
for
the
area
education
public
Changes
this
solitude
also
vehicle
values
decreasing
area
WSAs
the
administrative
manage
degrade
The
prevent
and
patrols
from
be
to
to
lacking
wilderness
significantly
in
are located
signing
distance
maintain the
was
are
to
area
the
to
ability
the potential
within
trails
barriers
BLMs
with
have
roads
motor vehicles
hearing
without
interfere
dead-end
to
but
manageability
or
impossible
to
boundary
Idaho
has
indicated
would
exchange
willingness
maintain
the
the 640
exchange
to
of
integrity
the
acre
and
area
state
enhance
manageability
Energy
and
Minerals
Geology
Resource
and
Energy
Mineral
GEM
assessment
1983
Conclusions
Inc
International
Geoexplorers
Values
WSA
The
Appendicitis
Hill
The
basis
classification
of
for
potential
stratigraphic
The
and
to
the
WSA
with
the
for
other
thermal
leasable
and
of
subsurface
history of the source
resources
rocks
geologic
and gas
oil
includes
private
beds
reservoir
The
excellent
from
structures
WSA
is
bitumen and
phosphate
including
unfavorable
which
and
sources
hydrocarbon
the generally
low-to-moderate
The low
the lack
occurrences
occurrences
favorable
occurrences
rated
is
copper
and
Lastly
and
indications
traps
potential
for
favorability
WSA
the
environment
in
the
classified
asphalt
of the
WSA
zinc
silver
low classification
mapping
mineral
of
of
presence
of
setting
WSA
are
moderate
as having
structural
Hill
was prepared for the Appendicitis
from the report
classified
the
is
development
section
known
lack of
been
has
the
low favorability
as having
leads
the
data
geophysical
The
this
report
is
of
is
favorability
and
geochemical
They
consist
for
metallic
because of the low
assigned
of
geophysical
prospect
pits
data
or
metals
level
of
including
detail
Within
shafts
The
the
lead
of published
WSA
mineral
geologic
there
are
three
content
of
these
unknown
WSA
potential
rating
is
classified
for building
of
sand and
gravel
on
of
sand and
gravel
is
the
as having
stone
and
moderate
aggregate
border of or
primarily
just
for county
favorability
production
outside
the
common
There
WSA
road maintenance
446
for
Use
are
of
varieties
11
known
these
areas
of limestone
occurrences
as sources
in
1983
Impacts
The
on
Resources
comparative impact table
alternatives
considered
on
including
the following
designation
page
or
summarizes
nondesignation
wilderness
447
the
of
effects
the
on
entire
pertinent
resources
Appendicitis
Hill
for
WSA
all
area
the
as
Table
Summary
Comparative
WSA
ID-31-14
NO
PROPOSED ACFION
ENVIRONMENTAL
PARTIAL
WILDERNESS
ISSUES
Impacts by Alternative
of the
APPENDICITIS
HILL
WILDERNESS
ALL WILDERNESS
ALTERNATIVE
ALTERNATIVE
ALTERNATIVE
Impacts
Wilderness
on
Values
Naturalness
and
or impaired
on 1515
short
term
solitude
or
No
acres
of wilderness
protection
legal
in
loss
long-term
impairment on 1315
on 21900
values
lost
acres
acres
Wilderness
13670
tion
values
on 8230
to
pacts
no
and
not
Wilderness
21900
values
acres
de
tude
and
is
occur
on
use
to
naturalness
1315
on
retained
Impacts
soli
would
not
acres
Im
portion
this
solitude
would
ness
but
impairing
on
anticipated
on
protec
legal
acres
or
velopment
retained
No
acres
natural
on
occur
1315
acres
Impacts
to
Energy and
Mineral
No Impact
to valid
Subject
on 13670
Development
the
leases
withdrawn
nor
Impacts
to
Motorized
No Impact
Use
to existing
Recreation
Vehicle
roads
use
and
limited
trails
would
from
location
recreation
amounting
to
be
nearby
usc
Impacts
to
Timber
Harvest
and
Management
No Impact
300
Douglas-fir
commercially
ned
on
logging
acres
unlikely
in
of
acres
thin
remaining
570
foreseeable
future
Impacts
to
Mule
Improvement
Deer
Habitat
ly
thinning
by
500
improved
mahogany
ed
325
MBF
of winter
acres
by mechanical
decadent
mountain
Population
30% 360 deer
increas
land
to
harvest
500
term
acres
of
are
360 deer
of
as
also
unlikely
future
winter
by
and
moderate
of
50
visitor
ed
from 13670
of
resources
are
impacts
days
annually
nearby
displac
closed
acres
Insignificant
on
en
mi
anticipated
to
due
impact
to similar or superior
opportu
land
public
im
Long-
mule
much
deer
as
30%
harvest
foregone
Logging
on
acres
commercial
of
foregone
in
range
MBF
325
570
forest
foregone
reduction
population
448
sales
foreseeable
provement
location
mineral
or
nities
foregone
commercial
the
from
roads
remaining
but
would be
for occurrence
potential
gas
WSA
Because
leasing
rights
and
oil
acres
acres
foregone
sim
to
of
Vehicle
existing
on 8230
on
of
due
withdrawn
ergy
existing
acres
the
ORVs
annually
Logging
in
No Impact
range
trails
days
valid
on 21900
nor
opportunities
public
limited
and
en
mi
use
visitor
impact
or superior
ilar
on
15
foregone
Insignificant
of
anticipated
Motorized
would
and
resources
are
impacts
to
Subject
leases
moderate
of
mineral
gas
be
for occurrence
potential
or
rights
and
oil
WSA
Because
leasing
ergy
existing
of
acres
the
500
but
acres
term
forest
are
sales
foreseeable
360 deer
range
foregone
reduction
population
by
of
as
also
unlikely
future
of winter
provement
570
remaining
im
Long-
mule deer
much
as
30%
Local
No
social
significant
Summary
BLMs
was
and Economic
Social
phase through
were used to develop
to
have
as
in
significant
Comments
the
Big Lost
the wilderness
inventory
were
comments were
received
during
written
and
Aviation
no
support
Idaho
in
original
agencies
Historical
action
of
the
to
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