by Larry Jorgensen (Author) Through the years, the challenge of powered transportation in the snow has been met with ideas from explorers, creative inventors and small companies, all with new ideas - often unique and sometimes successful. The name "snowmobile" was trademarked in 1917, but there were snow travel ideas before that date and certainly thousands more since. Winter explorers and trailblazers sought to replace their dogsleds and snowshoes as they explored difficult locations, including remote locations, on the north and south poles. Early inventors of snow vehicles often scavenged parts from many mechanical devices, trying many power and propulsion methods, from 2- and 4-stroke engines to air propulsion, and even a "snow biting" screw auger concept.