The covered wagons didn’t create Chemtrails because the
canvas cleverly broke up the slip stream...
Although if you wormed your mules in the morning it
was probably a good idea to walk in front for a while.
Lies! All lies! Mules DID leave chemtrails. Where do you think the Grand Canyon came from? It used to be a city the size of Des Moines. Then the Donner Party passed through — WITH THEIR MULES — and BAM! Giant smoking crater!