1. See the picture below for the location of the legendary ram
2. When you get to the location, you can find feces on the hillside on the roadside and start tracking.
3. Then you will see the scratched bark
4. Continue tracking to the grass by the river and find animal skins
5. Then walk along the river for a while and you can find the ram. Shoot and skin it to get the legendary ram skin and horns.
The above is the entire content of the legendary ram location guide in Red Dead Redemption 2. I hope it will be helpful to you.