We measured the electrical resistance of metallic alpha-uranium in high magnetic fields. When a simple metal is placed in a magnetic field its resistance increases. This increase is called its magnetoresistance. Our results appear to show that uranium's magnetoresistance is linked to its three charge density wave states. As expected, there is no Kohler scaling in the presence of these charge density wave states. At temperatures above these transitions, our data does Kohler scale. In this temperature region, uranium acts like a simple metal. Due to the high quality of our single crystal samples, the size of the magnetoresistance that we measured is about 100 times larger than any measurements in the literature.