If you’re ever stranded in the wilderness in winter with an injured companion, then this idea could be a lifesaver. The February 1944 issue of Popular Science showed how to construct this expedient sled from a Chippewa design.

The magazine explained that ash was the best wood to use, since the green wood would bend without breaking.

The sled was lashed together, and the magazine explained that if you had no cord, you could use strips of ironwood bark. Or, if you were using the sled to haul your injured companion, you could use the laces from his boots.