This page of the guide to Far Cry 6 features the location and description of the fight with the mythical animal Mamutito.
Region: Isla Santuario.
District: Prada Meadows.
Mamutito lives in a meadow full of white flowers. You can hear its sounds when you appear in the area. There will be a number of smaller enemies around him that will disturb you. You can easily defeat the animal with a shotgun. It doesn't have a lot of health points, and its attacks aren't very fast or strong. The boar may try to charge at you and spike you with its tusks.