Reddit reviews Journey Into Mohawk Country

Ok, well imagine this: There was one Dutch guy who was so sick of being stuck in that rinky-dink fort that he walked from Albany to Buffalo in the middle of winter to settle a trade despite with the indians. Along the way he lived in their forts, observed their religious rituals, ate 9-inch-thick bear bacon, and broke several ribs while slipping on ice.

Actually, you don't have to imagine it, his written account of it is available here (pages 135-157) and it's one of the coolest things I've read in my life. They even made a comic based on it.