Get a good snow cover in open UNDEVELOPED country not given over to forestry or agriculture you can hitch up a reindeer to pull you on skies at a steady 65 to 70 MPH.
Which means "highspeed" hasn't changed much since people first moved into reindeer country about 75,000 years ago!
15 posted on 02/01/2011 9:02:58 AM PST by muawiyah