It is a well known fact that Lucas Films hired several Bigfoot tribes to play the wookies in Star Wars.
In a comic book story, Chewbacca IS Sasquatch...
After some freak hyperspace jump, Han and Chewie crash land on Earth in the 1880s. Han is killed by American Indians but a sad Chewbacca roams the forest and gets named Sasquatch by the indigenous people.
Oh right yeah... and THEN, 126 years later, some archaeologist called Indiana Jones goes searching for Sasquatch and finds the wreckage of a strange craft and Han Solo's remains (which he remarks seem somehow familiar, although I'm not sure how what is now just a skeleton would seem familiar. Must be the Force or something).
Chewbacca is still alive, watching over and roaming the forests, accounting for all those Big Foot sightings.