|
the BTNF to employ the forecasters and provide equip-
ment. Technicalsupport is provided by the BTNF and the
JHSC.
Observations regardingbackcountry avalanche activity
and snowpack conditions are provided to the laboratory
by backcountry users via a phone line and answering
machine. In addition to observations from private parties,
observations are routinely received from High Mountain
Helicopter Skiing Guides who operate in the Snake River
and the GraysRiver Ranges, climbing rangers who operate
in GTNP, NOLS instructors who operatewithin theforecast
area, highway personnel who manage active avalanche
paths which impact roads on Teton Pass, Hoback Canyon
and the Snake River Canyon and Forest Service personnel
who document conditions, events and incidents within
their districts.
When visibility permits observations are made by fore-
casters who have visual access to portions of the forecast
region. The forecasters also enter the touring terrain and
unskied areas of the resort to conduct snowpit analyses
and perform snow stability evaluations.
A system of remote meteorological recording stations
(SNOTEL) is also located throughoutthe forecastarea and
can be accessed via modem. These stations provide the
forecast laboratory with temperature and precipitation
observations from numerous remote locations. Other fore-
cast centers located in southwestern Montana, Idaho and
northern Utah are sources of information regarding snow-
pack, meteorological and avalanche conditions in regions
to the north, west and south of the forecast area.

PHYSICAL ACCESS MANAGEMENT

Present user access to the touring areas is provided from
four control points. These access points are comprised of
gates and signs located along the operational boundary of
the resort. Access is only provided via these gates at times
when the criteria necessary for opening have been met as
determined by a member of the ski patrol designated as
the touring officer or his assistant.
These four access points have a swinging exit gate. The
gate hasa locking flip sign which can read closedor can be
flipped down to read "YouAre Leaving The Jackson Hole
Ski Area Boundary. This Is Your Decision Point". Users
must physically push throughthegate to accessthetouring
areas.
Twoother signsare postedat eachgate. Thebackcountry
avalanche hazard report issued by the forecast laboratory
is posted on one of these signs. The second sign is a lock-
ing flip sign whichwhenflippedupreadsclosed andwhen
flipped down has language which states hazards exist in
the touring area, guides are recommended and that indi-
viduals are responsible for their own safety and rescue.
Touring status boards are located at the base and top
stations of the aerial tramway and at the top stations of the
Sublette and Apres Vous chairlifts. These signs list the
touring gates and whether each gate is presently open or
closed. A determinationregardingwhetherthe gatesshould
be open or closed is made in the morning and may rely on
information obtained by the touring officer and assistants
after an early morning reconnaissancerun in the touring
areas. The gates close early if the avalanche hazard
increasessignificantly, if poor visibility develops and/or if
|
manpower resources are in demand. If none of these
conditions exist the gates may remain open until the early
afternoon.

PAST ACCESS MANAGEMENT

The aerial tramway was constructed in 1965. Early access
to the backcountry was informal and was primarily early
morning corn skiing on well established melt/freezecrust
or occasional runs in stable powder snow conditions.
Backcounty excursions were generally limited to experi-
enced parties who ventured into Rock Springs and Green
River Bowls which are the most easily accessed areas.
During the 1970s, interest and use in the touring areas
increased and a touring management program was devel-
oped. During periods of low avalanche hazard, good vis-
ibility and when good ski conditions existed guests of the
resort wereallowed access to the backcountry. Users were
requiredto sign out with the ski patrol for specific runs in
the touring area. The signout procedure required the us-
ers to be in groups with a designated leader who was fa-
miliar with the terrain. Group members were required to
sign a liability release form and specify the group's desti-
nation and route. Groups were required to call in to the
patrol when they returned to the base area. Searcheswere
conducted for groups which did not call in. The call in
requirement was dropped in the 1980s, although the
signout procedure was still in effect until 1994.
This program provided an interchange of information
between the users and the ski patrol. The patrol routinely
advised users regarding route selection, local pockets of
instability, snowpack stratigraphy and mountaineering
hazards. Groups wereroutinely directed to areasbelieved
to be low in hazard and advised against entering areas
believed to have greater hazard potential. During spring
conditions when the daily warmup was forecast to result
in a significant increase inthe hazard tourers were advised
to leave the backcountry by a specified hour. Users were
also able to communicate their observations to the
patrollers.
Increasing use of the backcountry in the 1980s eventu-
ally led to a request by ski resort guides to review the ac-
cess management plan. A review in 1990 resulted in the
determination that therescueresourcesof the TCSD, GTNP
and the JHSC were insufficient to handle an open gate
policy. In addition, a determination was made that guided
parties could not be allowed preferential access during
periods of greater than "low" hazard. This determination
was based upon the premise that members of the public
who did not have guides could not be unilaterally denied
access during these periods. The "one goes, all go" man-
agement philosophy resulted.
As pressure for accessincreasedduringthe early 1990s,
it became apparent that a substantial number of users were
circumventing the signout procedure. This introduced
some potential liability to the resort in that these tourers
were not afforded the opportunity to be advised of poten-
tial hazards associated with the touring area.
Toaddress this issue the managementpolicy was modi-
fied to the existing format where accessto the backcountry
is provided through controlled points wherewarningsand
liability disclaimers are posted. This new policy was de-
vised in 1993 and instituted in 1994.
|
 |