Slide 1
As you can see in the timeline above, it would be easy to assume that the Paleo-Indians had started out in the Northern Regions of modern day of America. Though, this is not the case, the really are estimated to started migrating north from Africa in as far back as 200,000 BCE. But, aside from that, you can see that from Northern Asia, they traveled eastward towards Northern America for a time period of about 15,000 years.
Slide 2
So, the Paleo-Indians during their point of traveling crossed the land bridge Beringia, for food the hunted large mammals such as Mastodons, Mammoths, and an ancient form of Bison. Since at some points of travelling food could be scarce they also gathered berries and lived in a mostly hunter