I copied and pasted this info. from a CBU update...
The 2700 acre area in Portal Creek that will be left open for snowmobile use is heavy timber and provides no opportunity for off trail riding. If you or your family used portions of the Hyalite Porcupine Bullalo Horn Wilderness Study area for snowmobiling prior to 1977, call the Gallatin Supervisor's office to inform them of this fact. If you have documentation of pre 1977 use of this area, please provide this information to the FS and CBU would appreciate a copy.
The 2700 acre area in Portal Creek that will be left open for snowmobile use is heavy timber and provides no opportunity for off trail riding. If you or your family used portions of the Hyalite Porcupine Bullalo Horn Wilderness Study area for snowmobiling prior to 1977, call the Gallatin Supervisor's office to inform them of this fact. If you have documentation of pre 1977 use of this area, please provide this information to the FS and CBU would appreciate a copy.