Well, if out of the box is desired, here’s a couple more.
Camels. You get meat, hides, milk, pack animals and transportation in one drought resistant package. And, since at one point, the U.S did have wild camels (now extinct), they might even be able to live on the available vegetation in certain areas. However, they do not like cold weather to much, so unlike caribou, I wouldn’t try keeping them in Alaska. California or Nevada maybe.
This is my first post and i would just like to say there are two types of camel, the Dromedary (single hump) that lives in desert areas such as central Australia and the Horn of Africa and the Bactrian (two hump) camel that lives in central Asia and withstand temperature ranges from -40 to 40 degrees celcius while providing milk, meat, fibre and transport.