I have been working on a post-apocalyptic fiction story and there is one thing I have been wondering about, could (in theory) a mammoth make a good pet and transportation system in this story?
For some context, my character is a human, genetically altered to have thick organic armored plates around his body and he has been exploring the habitable northern area because most of the south, equator, and southern area of the north is laid to waste by radiation from the war. Before his time, mammoths have been successfully revived and released into the wild, so they are in the north.
My character uses his personal pet mammoth to carry his gear so he can set up camp anywhere, and in exchange for this the mammoth gets companionship, food, water, and protection. The northern polar area gets at the average coldest 0˚F and warmest 57˚F (−18° to +14° C). There are about 800 humans in this region and 1200 woolly mammoths.
The mammoths were released into the wild 126 years before the apocalypse. The story is set up 20 years after the apocalypse.
Could someone tame a woolly mammoth, or would it just turn out bad? If so, what other arctic beasts of burden could I use?