This paper presents a comparative study of two colonizing populations in the Americas: the Fluted Point tradition (FPt) and the early Arctic Small Tool tradition (ASTt) with the aim of understanding the role of lithic technologies in the colonization process. The FPt and ASTt are seen as residentially mobile groups with comparatively little reliance on food storage and minimal transportation aids. At the same time they also produced very similar flaked stone technologies that differed greatly from all later groups, being characterized by standardized core reduction, excellence in manufacture, production of a wide range of often hafted tools, use of the highest quality toolstones and a reliance on flaked stone, as opposed to ground stone, tools. The main advantage of these technologies is that they are not only flexible but can be rapidly produced. It is suggested that the key variable accounting for these choices is the lack of efficient transportation aids. In colonizing situations, the limited transport capabilities force populations to: (a) rely more on less predictable search and encounter methods of resource procurement and in turn, residential mobility to position people with regard to resources and (b) place a high premium on efficient time allocation to meet the excessive demands needed to maintain social contacts and mating networks amongst very low density populations.