If a Search and Rescue (SAR) incident occured on Mt. Erebus during weather during which the helicopters can't fly, the SAR team would snowmobile up to deal with the situation. Altitude sickness is a very real hazard on Mt. Erebus. We would probably be going in at least partial white-out conditions, so all the more important that we are familiar with the route. We also evaluated the potential for bringing a patient down by snowmobile (which would be heinous). This trip was about 18 hours roundtrip, including stops midway to change the carburetor jets to accomodate the thinner air. We rode from sea level to the Lower Erebus Hut at 11,400 (then up the the Upper Hut later). The head scientists there Bill and Nelia welcomed us, gave us a tour of a local cave, and fed us a wonderful dinner.