The REAL Bigfoot.
A nearly meter-wide Sauropod dinosaur foot, unearthed 20 years ago from mudstone in northeastern Wyoming, is the largest yet found is described in the attached paper. The other dinosaur skeletons found at the site have yet to be identified, but the size and shape of the foot bones indicate that it once belonged to a brachiosaur.
https://peerj.com/articles/5250/
Maltese A, Tschopp E, Holwerda F, Burnham D. (2018) The real Bigfoot: a pes from Wyoming, USA is the largest sauropod pes ever reported and the northern-most occurrence of brachiosaurids in the Upper Jurassic Morrison Formation. PeerJ 6:e5250