You can find a tortoise that provides treasure at the Rail Nomads camp, in the northern part of the world map. The camp can be found just past some radiated areas. Once in the camp, search northern part of the Rail Nomads area, which is the first area you visit in this general location. Travel north from the central section of the map with the rail car interiors. Pass the small homeless camp up the middle path to reach the area in which the tortoise can be found. A character with the "Animal Whispering" skill is required to "activate" the tortoise. If needed, you can recruit Ralphy by saving him from drowning after entering the area. He can be found in one of the train cars in the central part of the map after his rescue. After "Animal Whispering" is used on the tortoise, it will begin moving slowly. It starts by travelling south, out of the hobo-camp then follows a path that leads it past the main meeting hall (where the clan leader is found), and further down to the south. Follow it and it will eventually approach a river at the southern part of the map. Note: You must clear mines from this area. The tortoise will eventually die at the end of its journey, leaving behind a mound of dirt. Use a shovel to dig up a random piece of treasure (rifle, weapon mod, armor, trinket, or ammunition).