1. The picture below is the detailed location of the legendary elk on the map.
2. Pay attention to the prompt in the upper left corner. You will be prompted when entering the legendary animal realm.
3. Equip weapons in advance, it is recommended to use rifles and other powerful weapons.
4. Turn on Eagle Eye mode to look for clues, as shown in the picture below.
5. Investigate each clue. There will be three clues in total.
6. You can basically find the legendary elk by following the clues.
7. Shoot and skin them to get the legendary elk skin and legendary elk antlers.
The above is the entire guide to the location of the legendary elk in Red Dead Redemption 2. I hope it will be helpful to you.