 Yes, Hugh Glass was a mountain man and beaver fur trapper in the American West in the 1820s and 1830s. On his first trip up the Missouri River in 1823, he was severely mauled by a grizzly bear, left for dead by his companions, survived, and struggled on his own for about six weeks and 200 miles back to Fort Keowa. This feat was legendary among his peers almost immediately and the story has been retold and elaborated on ever since.