This appears to be the narrow gauge Durango-Silverton Railway. It once serviced the King gold mine, but is now a tourist attraction. Some of that track before it gets into the canyon is easily accessed (home subdivisions etc), so this could be a hoax, but perhaps not. If you look closely you can see more than one. So if it's a prank they'd need two suits. They do travel in family groups, as do the Yeti.
People on a train in southwest Colorado may have spotted 'Bigfoot 👣🦶.' Thoughts? Video: bt92.travels (IG user) #colorado #news #bigfoot pic.twitter.com/6XhjabXog7
— Alien UFO Sightings (@alienufovideos) October 11, 2023