1. See the picture below for the location of the legendary bison
2. When you arrive at the location, first find the feces and start tracking.
3. Found a broken stick among the trees in the middle of the grass
4. Continue tracking and discover bison fur
5. At this time, you can see the legendary bison in the woods ahead. Skin it and get the legendary bison skin and Tatanka bison horns.
The above is the entire guide to the location of the legendary bison in Red Dead Redemption 2. I hope it will be helpful to you.